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STV6412B
Audio/video switch matrix
Features

IC bus control Standby mode with interrupt signal output Video section - 4 CVBS inputs, 3 CVBS outputs (one with selectable chroma trap filter) - 3 Y/C inputs, 2 Y/C outputs - Switchable LPFs (low pass filters) on 6 inputs - 6 dB gain on all CVBS/Y and C outputs - Integrated 150 buffers - 1 Y/C adder - 2 RGB/FB inputs, 1 tri-state RGB/FB output with 6 dB adjustable gain (from +3 dB to +9 dB) - Video muting on all outputs - 2 slow blanking inputs/outputs - Sync bottom clamp on all CVBS/Y and RGB inputs, average clamp on C inputs - SVHS switch on C VCR output - Bandwidth: 15 MHz - Crosstalk: 50 dB minimum Audio section - 4 Stereo inputs, 3 stereo outputs - 1 mono-sound output - Stereo-to-mono sound capability - 0/6/9 dB selectable gain on one stereo input - Full range volume control with soft control - Audio muting on all outputs
LQFP64 (14 x 14 x 1.40 mm) (Low-profile Quad Flat Pack) Marking: STV6412BD
Description
The STV6412B is a highly integrated IC buscontrolled audio and video switch matrix, optimized for use in digital set-top box applications. It provides all the audio and video routings required in a full two-SCART set-top box design. In an LQFP64 (14 x 14 x 1.4 mm) package, the STV6412B is compatible with the STV6412A. Table 1: Device summary
Order code STV6412BD STV6412BDT Packaging Tray Tape and reel
July 2008
Rev 1
1/32
www.st.com 1
STV6412B
1
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 I/O pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 2.2 2.3 2.4 2.5 2.6 Latch up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Audio section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Video section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Chroma section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Blanking section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6.1 2.6.2 2.6.3 Fast blanking section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Address selection input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.7
IC bus characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3
IC bus selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 IC bus addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 5 6
Input/output groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.1 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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STV6412B
General information
1
Figure 1.
General information
STV6412B pinout diagram
Y/CVBSOUT_VCR Y/CVBSOUT_TV
R/COUT_TV
COUT_VCR
GOUT_TV
BOUT_TV
VOUT_RF AOUT_RF 36 35
FILTER 34
GNDB
FBOUT_TV FBIN_VCR FBIN_ENC NC VDD ADD SCL SDA GND IT_OUT SLB_TV R/CIN_VCR SLB_VCR GIN_VCR VCC12 BIN_VCR
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 10 11 12 13 14 15 16 1 VCC 2 CVBSIN_AUX 3 DECV 4 5 6 7 8 9 STV6412B
LOUT_TV 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
VCCB 2
VCCB 1
VCCB 3
VCCB 4 39
VCCB 5 37
YIN_ENC
GND
RIN_ENC
GIN_ENC
LIN_ENC
RIN_AUX
Y/CVBSIN_ENC
R/CIN_ENC
CIN_ENC
BIN_ENC
LIN_AUX
NC DECA
48
47
46
45
44
43
42
41
40
38
ROUT_TV VCCAO LOUT_VCR ROUT_VCR LOUT_CINCH ROUT_CINCH NC GNDA VCCA RIN_TV LIN_TV CVBSIN_TV RIN_VCR LIN_VCR Y/CVBSIN_VCR GND
3/32
General information
STV6412B
1.1
Table 1.
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
I/O pin description
I/O pin description
Symbol VCC CVBSIN_AUX DECV Y/CVBSIN_ENC GND YIN_ENC RIN_AUX CIN_ENC LIN_AUX R/CIN_ENC RIN_ENC GIN_ENC LIN_ENC BIN_ENC NC DECA GND Y/CVBSIN_VCR LIN_VCR RIN_VCR CVBSIN_TV LIN_TV RIN_TV +5 V supply CVBS input from auxiliary Video decoupling capacitor Y/CVBS input from encoder Ground Y input from encoder Audio right input from auxiliary Chroma input from encoder Audio left input from auxiliary Red/Chroma input from encoder Audio right input from encoder Green input from encoder Audio left input from encoder Blue input from encoder Not connected Audio decoupling capacitor Ground Y/CVBS input from VCR SCART Audio left input from VCR SCART Audio right input from VCR SCART CVBS input from TV SCART Audio left input from TV SCART Audio right input from TV SCART 9V audio supply voltage output if VCCAO is used as 12V supply voltage input or 9V audio supply voltage input, VCCAO must be used as 9V supply voltage input Audio ground Not connected Audio right output to CINCH Audio left output to CINCH Audio right output to VCR SCART Audio left output to VCR SCART Description
24
VCCA (see Figure 2)
25 26 27 28 29 30
GNDA NC ROUT_CINCH LOUT_CINCH ROUT_VCR LOUT_VCR
4/32
STV6412B Table 1.
Pin No.
General information I/O pin description (continued)
Symbol Description 12V supply voltage input, VCCA is regulated 9V output for decoupling or 9V supply voltage input, VCCA must be used as 9V supply voltage input Audio right output to TV SCART Audio left output to TV SCART Chroma trap filter Audio (L+R) output to RF modulator CVBS video output to RF modulator Video output buffer supply pin Blue output to TV SCART Video output buffer supply pin Green output to TV SCART Video buffer ground Red/Chroma output to TV SCART Video output buffer supply pin Y/CVBS output to TV SCART Video output buffer supply pin Chroma output to VCR SCART Video output buffer supply pin Y/CVBS output to VCR SCART Fast blanking output to TV SCART Fast blanking input from VCR SCART Fast blanking input from encoder Not connected +5 V IC supply IC address selection IC bus clock IC bus data Ground digital Interrupt output Slow blanking input/output from TV SCART Red input (or C input) from VCR SCART Slow blanking input/output from VCR SCART Green Input from VCR SCART
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
VCCAO (see Figure 2) ROUT_TV LOUT_TV FILTER AOUT_RF VOUT_RF VCCB5 BOUT_TV VCCB4 GOUT_TV GNDB R/COUT_TV VCCB3 Y/CVBSOUT_TV VCCB2 COUT_VCR VCCB1 Y/CVBSOUT_VCR FBOUT_TV FBIN_VCR FBIN_ENC NC VDD ADD SCL SDA GND IT_OUT SLB_TV R/CIN_VCR SLB_VCR GIN_VCR
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General information Table 1.
Pin No. 63 64 VCC12 BIN_VCR
STV6412B
I/O pin description (continued)
Symbol +12 V supply Blue input from VCR SCART Description
Figure 2.
Power supply configuration
STV6412B STV6412B VCC12 (63) 9 volt output 12V VCCAO (31) V CCA (24) 9V VCCAO (31) VCCA (24) 9 volt input Audio ground
Audio ground
In applications where a 12 volt supply from slow blanking is used to derive the internal audio 9 volt supply voltage, the VCCAO pin must be connected to the 12 volt supply as shown in the example. The VCCA pin will show the regulated 9 volt audio supply voltage which must be decoupled by capacitors.
In applications having a dedicated audio supply voltage, the VCCAO pin must be connected together with the VCCA pin to the audio supply as shown in the example. The VCCA pin acts as power supply input for the internal audio block.
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STV6412B Figure 3. STV6412B block diagram
0V 4V FBIN_ENC FBIN_VCR
General information
FBIN_ENC FBIN_VCR
FBOUT_TV
FB switch
BIN_ENC BIN_VCR GIN_ENC GIN_VCR R/CIN_ENC R/CIN_VCR
LPF LPF LPF
BIN_ENC BIN_VCR Mute GIN_ENC GIN_VCR Mute R/CIN_ENC R/CIN_VCR Mute
3 to 9 dB
BOUT_TV
3 to 9 dB
GOUT_TV
3 to 9 dB
RGB switch
Mute R/CIN_VCR CIN_ENC R/CIN_ENC Mute
R/C Switch
6 dB
R/COUT_TV
Tri-state
CIN_ENC
LPF
+
VOUT_RF
C switch
CVBSIN_AUX Y/CVBSIN_VCR YIN_ENC Y/CVBSIN_ENC
CVBSIN_AUX Y/CVBSIN_VCR YIN_ENC Y/CVBSIN_ENC Mute
Trap
FILTER
6 dB
Y/CVBSOUT_TV
LPF LPF
Mute Mute CIN_ENC R/CIN_ENC Mute
Y/CVBS switch
6 dB
COUT_VCR C switch IT_OUT
Slow blanking monitor interrupt signal
6 dB
CVBSIN_TV
CVBSIN_AUX CVBSIN_TV Y_ENC Y/CVBSIN_ENC Mute
SLB_TV SLB_VCR Y/CVBSOUT_VCR
Y/CVBS Switch
LIN_AUX LIN_ENC LIN_TV Mute RIN_AUX RIN_ENC RIN_TV Mute
LIN_AUX LIN_ENC LIN_TV
0/6/9 dB
Stereo/mono
LOUT_VCR ROUT_VCR
0/6 dB
ROUT_CINCH
RIN_AUX RIN_ENC RIN_TV LIN_VCR RIN_VCR
0/6/9 dB
VCR Switch
LIN_AUX LIN_ENC LIN_VCR LIN_TV Mute RIN_AUX RIN_ENC RIN_VCR RIN_TV Mute
0/6 dB
LOUT_CINCH
+
-62 dB 0/6 dB
0/6 dB
AOUT_RF LOUT_TV ROUT_TV
Stereo/mono
-62 dB
0/6 dB
ADD
IC bus Decoder
SDA SCL
TV switch
7/32
General information Figure 4. STV6412B functional block diagram
Audio L Audio R
STV6412B
R/C G B Fast blanking SCART1 TV CVBS Audio L Audio R CVBS/Y Audio L Audio R Slow blanking
STV6412B
CINCH output
RGB and FB switches
R/C G B Fast blanking CVBS/Y Encoder C Audio L Audio R Y
CVBS/Y switches
RF MOD
CVBS Audio L+R
Chroma switches
AUX
CVBS Audio L Audio R
Audio switches
Micro
Interrupt
Slow blanking I/O control
R/C G B Fast blanking CVBS/Y Audio L Audio R CVBS/Y C Audio L Audio R Slow blanking
SCART2 VCR
8/32
STV6412B
Electrical characteristics
2
Electrical characteristics
Table 2: Absolute maximum ratings
Symbol VCC12 VCCAO VCCA VDD Parameter Supply voltage for slow blanking sections Supply voltage for audio drivers Supply voltage for internal digital audio parts Supply voltage for digital parts Value 13.2 13.2 10.0 6.0 6.0 0, VCCA 0, VCC or VCCBI 0, 5.5 0, VCC12 4 Unit V V V V V
VCC, VCCB1 Supply voltage for video sections Input voltage at pin (in reference to GND) Audio pins Video pins Bus pins Slow blanking pins
VIN
V
VESD
Maximum ESD Voltage allowed (human body model: 100 pF capacitor discharged through 1.5 k serial resistor)
kV
Table 3: Thermal data
Symbol RthJA TSTG TOPER Tj Parameter Maximum junction-to-ambient thermal resistance Storage temperature Operating free air temperature range Maximum junction temperature Value 48 -20 to +150 0 to +70 150 Unit C/W C C C
2.1
Latch up
At an ambient temperature of 25 C, all pins meet the following specifications: I trigger = 200 mA or I trigger = -200 mA.
2.2
Recommended operating conditions
TAMB = 25 C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V, RLOUTA = 10 k RLOUTV = 150 , unless otherwise specified. ,
Table 4: Recommended operating conditions
Symbol Supply voltages VDD VCCAO VCC Digital supply voltage Audio operating supply voltage Video operating supply voltage - Decoupling capacitor on VCCA - Connected to VCCA 4.75 11.2 8.5 4.75 5 12 9 5 5.25 12.8 9.5 5.25 V V V Parameter Test conditions Min Typ Max Unit
9/32
Electrical characteristics Table 4: Recommended operating conditions (continued)
Symbol VCC12 Parameter Slow blanking control supply voltage Test conditions Min 11.2 Typ 12
STV6412B
Max 12.8
Unit V
Active mode (all channels ON) IDD ICCA Digital supply current Audio supply current Total video supply current (VCC+VCCB1+VCCB2+VCCB3 +VCCB4+VCCB5) VDD = 5 V VCCAO = 12 V, no load VCC = 5 V, no load, LPF OFF VCC = 5 V, no load, LPF ON VCC = 5 V, with load, LPF OFF VCC = 5 V, with load, LPF ON VCC12 = 12 V SLB input mode SLB output mode, no load 6 8 35 50 48 63 0 3 10 15 45 65 62 80 1 4 mA mA
ICCV
mA
ICC12
12 V supply current
mA
Standby mode (all channels OFF + LPF OFF) IDD ICCAstd ICCVstd Digital supply current Audio supply current Total video supply current VDD = 5 V VCCA0 = 12 V, no load VCC = 5 V 6 3 1 10 mA mA mA
2.3
Audio section characteristics
TAMB = 25C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V, RGA = 600 , RLOUTA = 10 k, RGV = 50 , RLOUTV = 150 , unless otherwise specified.
Table 5.
Symbol
Audio section characteristics
Parameter Test conditions VRIPPLE = 500 mVRMS at 100 Hz, Gain= 0 dB, DECA filter cap = 47 F DECA filter cap = 220 F VRIPPLE = 500m VRMS at 1 kHz, Gain = 0 dB VCCA = 9 V Min Typ Max Unit
SVR100 Supply voltage rejection
60
70 80 80 3.2 2
dB
SVR1K VINDC VINAC RIN
Supply voltage rejection Input DC level Input signal amplitude Input resistance
70
dB V VRMS k 10 % kHz 0.5 dB
30
50 2
RINmatch Input resistance matching FRANGE Bandwidth -3 dB, 0.5 VRMS, RLOAD = 10 k, Gain = 0 dB -0.5 VRMS, 20 Hz to 20 kHz, Gain = 0 dB 50
Flatness Spread of gain in audio band
10/32
STV6412B Table 5.
Symbol CS
Electrical characteristics Audio section characteristics (continued)
Parameter Test conditions VIN = 0.5 VRMS at 1 kHz, on 1 input, , RLOAD = 10 k Gain = 0 dB VIN = 1 Vpp at 15 kHz, on one point VCCA = 9 V Switching between inputs Min 80 70 Typ 90 74 85 VCCA/2 1 60 f = 1 kHz, 1 VRMS input on each input channel f = 1 kHz, 1 VRMS input (Gain = 0 dB) weighted CCIR 468-4 quasi peak BW = 20 Hz to 20 kHz flat, Gain = 0 dB 0.5 VRMS, RLOAD = 10 k Gain = , 0 dB -62 dB to +6 dB (see Figure 5) VIN = 0.5 VRMS, 1 kHz, Gain = 0 dB VIN = 0.5 VRMS, 1 kHz, Gain = 0 dB -0.5 -0.5 -0.5 2 0.5 0.5 75 85 15 120 3 Max Unit dB
Channel separation, from audio inputs Between L & R of TV outputs Channel isolation from video inputs Output DC level DC offset change Output resistance Phase difference
Ci VOUT VOFF ROUT PHD
dB V mV deg.
ASN
S/N ratio Equivalent RMS input voltage noise 0 dB gain Gain step Gain matching between different inputs of one output Gain matching between left/right outputs of one input channel Total harmonic distortion ENC Input at 0 dB ENC Input at 6 dB ENC Input at 9 dB Output clipping level Output load resistance Mute suppression
dB
eNI G0 GSTEP GMATCH1 GMATCH2
5 +0.5
V dB dB dB dB
THD0 THD6 THD9 VCL RL Mute
VOUT = 0.5 VRMS, 1 kHz, LPF @ 80 kHz THD = 0.2%, 1 kHz VIN = 1 VRMS, THD = 0.3%, Gain = 0 dB VIN = 0.5 VRMS, on one point 2.1 2 -90
0.01 0.01 0.01 2.3 2.25
0.1 0.1 0.1
% % % VRMS k dB
11/32
Electrical characteristics Figure 5. Volume control characteristics
0 0.5 dB 18 31 Step number
STV6412B
-36
0.5 dB
+ 2 dB -62 dB - 0.5 dB
2.4
Video section characteristics
TAMB = 25 C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V
Table 6.
Symbol VDCIN ICLAMP ILEAK CIN VIN DYN BW
Video section characteristics
Parameter DC input level Clamping current Input leakage current Input capacitance Max input signal Dynamic output signal Bandwidth at -3 dB without LPF Y/CVBS RGB Y/C mixer (on VOUT-RF) Spread of gain in video band (15 kHz to 5 MHz) Y/CVBS RGB Y/C Mixer (on VOUT-RF) Low pass filter bandwidth at -3 dB Low pass filter attenuation Crosstalk isolation between Input channel VCC = 5 V VCC = 5 V VIN = 1 VPP VIN = 1 VPP VIN = 1 VPP, VINC = muted 10 10 8 15 15 10 Test conditions Bottom sync pulse at VDCIN -400 mV VIN = VDCIN +1 V 1 Min Typ 2 2 1 2 1.5 3 10 Max Units V mA A pF VPP VPP MHz MHz MHz
Flatness
VIN = 1 VPP VIN = 1 VPP VIN = 1 VPP, VINC = muted VIN = 1 VPP, CL = 10pF 27 MHz VIN = 1 VPP at f = 4.43 MHz, on one point 7.5 -47 60
0.5 0.5 1.5
dB dB dB MHz
BW LPF ATT CTi
-36
dB dB
12/32
STV6412B Table 6.
Symbol CTo ROUT GRGB GRGBM
Electrical characteristics Video section characteristics (continued)
Parameter Crosstalk isolation between output channel Output resistance Gain at RGB outputs Gain matching between R, G, B VIN = 1 VPP, Gain set to 6 dB VIN = 1 VPP, Gain set to 6 dB 3 dB to 6 dB VIN = 1 VPP VIN = 1 VPP Bottom sync pulse Bottom sync pulse VIN = 1 VPP at f = 4.43 MHz VIN = 1 VPP at f = 4.43 MHz VIN = 1 VPP at f = 5 MHz on one point -55 0.3 Refer to Note 1 65 3 5.5 -0.3 0.75 5.5 -0.5 Test conditions VIN = 1 VPP at f = 4.43 MHz, on one point, RLOAD = 150 Min Typ 50 5 6 0 1 6 0 0.6 1 1 1 5 5 10 6.5 0.3 1.25 6.5 0.5 Max Units dB dB dB dB dB dB V V deg. % dB % dB
GRGBSTEP Step of gain GYCVBS GYCVBSM DCOUT Gain on Y,/CVBS channels Gain matching between Y, CVBS inputs DC output voltage
DCOUT RF RF output voltage DPHI DG Mute LNL VSN Differential phase Differential gain Mute suppression Luminance non-linearity Video S/N ratio
Note:
1
S/N = 20 log (VOUT Black to White = 0.7 VPP / VNoise (mVRMS) weighted CCIR 567).
2.5
Chroma section characteristics
TAMB = 25 C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V RGA = 600 RLOUTA = 10 k RGV = 50 RLOUTV = 150 , unless otherwise specified. , , ,
Table 7.
Symbol VDCIN RIN CIN VIN DYN DCOUT CBW CTi
Chroma section characteristics
Parameter DC input level Input resistance Input capacitance Max input signal Dynamic output signal DC output VCR voltage Chroma bandwidth Crosstalk isolation between Input channel CIN = 1 VPP at -3 db VIN = 1 VPP at f = 4.43 MHz, on one input 10 2.2 15 55 30 Test conditions Min. Typ. 3 50 2 1.5 3 Max. Units V k pF VPP VPP V MHz dB
13/32
Electrical characteristics Table 7.
Symbol CTo ROUT GOUTC GCM Mute CToYdel CToYdel ZCOUT_VCR
STV6412B
Chroma section characteristics (continued)
Parameter Test conditions Min. Typ. 50 5 VIN = 1 VPP VIN = 1 VPP VIN = 1 VPP at f = 4.43 MHz, on one input Pin other than VOUT_RF, VPP @ 4.43 MHz, 5.5 -0.5 -55 20 20 2 6 0 10 6.5 0.5 Max. Units dB dB dB dB ns ns
Crosstalk isolation between output VIN = 1 VPP at f = 4.43 MHz, on channel one input, RLOAD = 150 Output resistance Gain at OUTC Gain matching between C inputs Mute suppression Chroma to luma delay, source Y/C
Chroma to luma delay, source Y/C Pin VOUT_RF Output impedance when switched 2.7V applied to COUT_VCR to ground with series 75 Resistor
2.6
Blanking section
TAMB = 25 C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V, RLOUTA = 10 k RLOUTV = 150 , unless otherwise specified. ,
Table 8.
Symbol Input mode SLBlow SLBhigh IIN
Blanking section
Parameter Test conditions Min Typ Max Units
Input low level threshold Input high level threshold Input current
2.5 7.5
3.25 8.25 50
4 9 100
V V A
Output mode SLBlow SLBmed SLBhigh Output low level (int. TV) Output medium level (ext. 16/9) Output high level (ext. 4/3) 0 5 10 0.02 5.75 11 1.5 6.5 12 V V V
2.6.1
Table 9.
Symbol Input mode
Fast blanking section
Fast blanking section
Parameter Test conditions Min Typ Max Units
FBlow/high Input low/high level threshold IIN Input current
0.4
0.7 2
0.9 10
V A
Output mode
14/32
STV6412B Table 9.
Symbol FBLOW FBHIGH
Electrical characteristics Fast blanking section (continued)
Parameter Output low level Output high level Test conditions RLOAD = 150 At 50% on digital RGB transients, at 2 V on FB rise transient, at 1 V on FB fall, CLOAD = 10pF maximum CLOAD = 10 pF maximum between 10% and 90% between 90% and 10% Min Typ Max 0.5 3.0 3.4 3.8 Units V V
FBDEL
Fast blanking RGB delay
15
ns
FBTRANS
FB transitions at FB output Rise Time Fall Time
10 10
ns ns
2.6.2
Interrupt output
Refer to Note 1
Table 10.
Symbol IT-Leak IT-Low
Interrupt output
Parameter High level leakage Output low level (active) Test conditions External pull-up to 5 V IIN = 0 mA IIN = 1 mA Min. Typ. Max. 10 0.3 0.7 Units A V V
2.6.3
Table 11. Symbol
Address selection input
Address selection input Parameter Test conditions Min. Typ.
0 2.5
Max.
0.2 VDD 10
Units
V V A
ADDsel_L Address selection low level ADDsel_H Address selection high level ILEAK Leakage current
Note:
1
The interrupt is forced low when a change is detected on slow blanking inputs. It can be used in standby mode to wake up the microprocessor. It is released when the IC bus register is read.
15/32
Electrical characteristics
STV6412B
2.7
IC bus characteristics
TAMB = 25C, VCCAO = 12 V, VCC = 5 V, VCC12 = 12 V, VDD = 5 V, RLOUTA = 10 k RLOUTV = 150 , unless otherwise specified. ,
Table 12.
Symbol SCL VIL VIH ILI fSCL tR tF CI SDA VIL VIH ILI CI tR tF VOL tF CL
IC bus characteristics
Parameter Test conditions Min Typ Max Units
Low level input voltage High level input voltage Input leakage current Clock frequency Input rise time Input fall time Input capacitance 1.5 V to 3 V 1.5 V to 3 V VIN = 0 to 5.5 V
-0.3 2.3 -10 0
1.5 5.5 10 400 1 300 10
V V A kHz s ns pF
Low level input voltage High level input voltage Input leakage current Input capacitance Input rise time Input fall time Low level output voltage Output fall time Load capacitance 1.5 V to 3 V 3 V to 1.5 V IOL = 3 mA 3 V to 1.5 V VIN = 0 to 5.5 V
-0.3 2.3 -10 0
1.5 5.5 10 10 1 300 0.4 250 400
V V A pF s ns V ns pF
Timing: SCL frequency = 400 kHz tLOW tHIGH tSU,DAT tHD,DAT tSU,STO tBUF tHD,STA tSU,STA Clock low period Clock high period Data setup time Data hold time Setup time from clock high to stop Start setup time following a stop Start hold time Start setup time following clock low to high transition 1.3 0.6 100 0 0.6 1.3 0.6 0.6 340 s s ns ns s s s s
16/32
STV6412B Figure 6.
SDA tBUF tLOW tF
Electrical characteristics IC bus timing
SCL tHD,STA tR tHD,DAT tHIGH tSU,DAT
SDA
(start, stop)
tSU,STA
tSU,STO
17/32
IC bus selection
STV6412B
3
IC bus selection
Data transfers follow the usual IC format; that is, after the start condition (S), a 7-bit slave address is sent, followed by an eighth bit (W) that determines whether the data direction is Read (W=1) or Write (W=0). An 8-bit sub-address is sent to select a register, followed by an 8-bit data word to be included in the register. The IC's IC bus decoder enables the automatic incrementation mode in write mode. The circuit operates at clock frequencies of up to 400 kHz. Table 13.
S
String format
SLAVE ADDRESS 0 A SUB-ADDRESS A DATA A P
Write only mode (S = Start condition, P = Stop condition, A = Acknowledge)
Table 14.
S
Read only mode
SLAVE ADDRESS 1 A DATA A P
Table 15.
Address Value
Slave address
A6 1 A5 0 A4 0 A3 1 A2 0 A1 1 A0 X
Table 16.
Auto increment mode
DATA1 A .... DATAn A P Sub-address Sub-address +1 Sub-address + N
S SLAVE ADDRESS 0 A SUB-ADDRESS A DATA0 A
3.1
IC bus addresses
Write address: 1001 01X0, read address: 1001 01X1 Address selection pin grounded: X = 0, write address = 94(hex), read address = 95(hex) Address selection pin to supply: X = 1, write address = 96(hex), read address = 97(hex)
Table 17.
Reg Addr (Hex) Audio 00h
Input signal summary (write mode)
Data d7 d6 d5 d4 d3 d2 d1 d0
TV stereo mono VCR stereo mono
TV 0/6 dB Not used (see Note 1)
TV volume-62 dB to 0 dB - 2 dB steps VCR audio switch control CINCH audio gain
Soft volume mode
01h
TV/CINCH audio switch control
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STV6412B Table 17.
Reg Addr (Hex) Video 02h VCR chroma muted RGB and FB tri-state VCR video and chroma switch control TV chroma muted
IC bus selection Input signal summary (write mode) (continued)
Data d7 d6 d5 d4 d3 d2 d1 d0
TV video and chroma switch control Fast blanking mode/input selection
03h
RGB gain
RGB switch control
Miscellaneous 04h IT enable SLB mode Low pass filter control VCR-C output control RF trap RF adder filter control control VCR R/C sub clamp TV R or C output selection ENC R/C sub clamp
05h STB-BY 06h
VCR slow blanking
TV slow blanking
ENC audio input gain 0/6/9 dB
RF outputs
TV outputs
CINCH outputs
VCR outputs
AUX inputs
TV inputs
VCR inputs
ENC inputs
Note:
1
Unused data must be set to "0". TV audio output
Data Description Bits d7 d6 X X X X 0 1 X X d5 X X 0 1 X X X X d4 X X 0 1 X X X X d3 X X 0 1 X X X X d2 X X 0 1 X X X X d1 X X 0 1 X X X X d0 0 1 X X X X X X Active Disabled 0 dB -62 dB (-2 dB/step) 0 dB +6 dB 0 = Stereo 1 = Mono X X X X X X 0 1 Comments
Table 18.
Reg Addr (Hex)
Soft volume change Level adjustment 00h 6 dB extra gain TV stereo or mono mode
1 5 1 1
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IC bus selection
STV6412B
Table 19: Audio selection and VCR audio output
Reg Addr (Hex) Data Description Bits d7 X X X X X X X X X X X X X X 0 1 d6 X X X X X X X X X X X X X X X X d5 X X X X X X X X X X 0 0 1 1 X X d4 X X X X X X X X X X 0 1 0 1 X X d3 X X X X X X X X 0 1 X X X X X X d2 0 0 0 0 1 1 1 1 X X X X X X X X d1 0 0 1 1 0 0 1 1 X X X X X X X X d0 0 1 0 1 0 1 0 1 X X X X X X X X Muted Encoder L/R selected VCR L/R selected AUX L/R selected TV L/R selected Not allowed Not allowed Not allowed 0 dB Follow TV gain Muted Encoder L/R selected TV L/R selected AUX L/R selected 0 = Stereo 1 = Mono Comments
TV & CINCH audio output selection
3
01h
CINCH audio gain
1
VCR audio output selection VCR stereo or mono mode
2
1
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STV6412B
IC bus selection
Table 20: TV and VCR selection
Reg Addr (Hex) Data Description Bits d7 d6 d5 d4 d3 d2 d1 d0 Y/CVBS muted & chroma muted Y/CVBS_ENC & R/C_ENC Y_ENC & C_ENC Y/CVBS_VCR & R/C_VCR CVBS_AUX & chroma muted Not allowed Not allowed Not allowed Chroma defined by d2d1d0 Chroma force to mute Y/CVBS muted & chroma muted Y/CVBS_ENC & R/C_ENC Y_ENC & C_ENC CVBS_TV & chroma muted CVBS_AUX & chroma muted Not allowed Not allowed Not allowed Chroma defined by d6d5d4 Chroma force to mute Comments
TV video output selection
3
X X X X X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
0 0 0 0 1 1 1 1
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
TV chroma output control 02h
1
X X
X X
X X
X X
0 1
X X
X X
X X
VCR video output selection
3
X X X X X X X X
0 0 0 0 1 1 1 1
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
X X X X X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
VCR chroma output control
1
0 1
X X
X X
X X
X X
X X
X X
X X
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IC bus selection
STV6412B
Table 21: RGB and fast blanking outputs
Reg Addr (Hex) Data Description Bits d7 Fast blanking control X X X X X X X X X X X X X X 0 1 1 X X X X X X X d6 X X X X X X X X X X X X 0 1 X d5 X X X X X X X X 0 0 1 1 X X X d4 X X X X X X X X 0 1 0 1 X X X d3 X X X X 0 0 1 1 X X X X X X X d2 X X X X 0 1 0 1 X X X X X X X d1 0 0 1 1 X X X X X X X X X X X d0 0 1 0 1 X X X X X X X X X X X FB forced to low level FB forced to high level FB from encoder FB from VCR Muted RGB_ENC selected RGB_VCR selected Not allowed +6 dB gain +5 dB gain +4 dB gain +3 dB gain +0 dB extra gain +3 dB for weak input signals RGB and FB outputs high impedance state RGB and FB outputs active Comments
2
RGB selection 03h RGB gain
2
2
1 RGB and fast blanking control
Table 22: RF and miscellaneous control
Reg Addr (Hex) Data Description R/C TV output selection RF output: adder control and chroma sub-carrier filter selection C_VCR output control Low pass filter control Slow blanking mode IT enable Bits d7 1 X X X X X X X X X X X X X 0 1 d6 X X X X X X X X X X X 0 1 X X d5 X X X X X X X X X 0 1 X X X X d4 X X X X X X 0 0 1 X X X X X X d3 X X X X X X 0 1 X X X X X X X d2 X X X X 0 1 X X X X X X X X X d1 X X 0 1 X X X X X X X X X X X d0 0 1 X X X X X X X X X X X X X Red signal selected Chroma signal selected CVBS to RF output Y + C to RF output Filter not active Filter active Grounded Tri-state Mode (High Impedance) Active LPF Enabled LPF Disabled Normal Mode SLB TV is driven by SLB VCR No interrupt flag IT enable Comments
1 1
04h
2
1
1
1
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STV6412B
IC bus selection
Table 23: Slow blanking and inputs control
Reg Addr (Hex) Data Description Bits d7 Encoder R/C sub clamp VCR R/C sub clamp 1 1 X X X X d6 X X X X d5 X X X X d4 X X X X d3 X X X X d2 X X X X d1 X X 0 1 d0 0 1 X X Bottom level clamp Average level clamp Bottom level clamp Average level clamp 0 dB for normal audio inputs +6 dB for weak audio inputs +9 dB for weak audio inputs Input mode only Output < 2 V Output 16/9 format Output 4/3 format Input mode only Output < 2 V Output 16/9 format Output 4/3 format Comments
Encoder input level adjustment 05h
2
X X X
X X X
X X X
X X X
0 0 1
0 1 0
X X X
X X X
Slow blanking TV SCART
2
X X X X 0 0 1 1
X X X X 0 1 0 1
0 0 1 1 X X X X
0 1 0 1 X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
Slow blanking VCR SCART
2
Table 24: Standby modes
Reg Addr (Hex) Data Description Bits d7 ENC inputs VCR inputs TV inputs AUX inputs 06h VCR outputs CINCH outputs TV outputs RFmod outputs Full stop 1 1 1 1 1 1 1 1 X X X X X X X X X X X X X X 0 1 1 d6 X X X X X X X X X X X X 0 1 X X 1 d5 X X X X X X X X X X 0 1 X X X X 1 d4 X X X X X X X X 0 1 X X X X X X 1 d3 X X X X X X 0 1 X X X X X X X X 1 d2 X X X X 0 1 X X X X X X X X X X 1 d1 X X 0 1 X X X X X X X X X X X X 1 d0 0 1 X X X X X X X X X X X X X X 1 Inputs active Inputs disabled Inputs active Inputs disabled Inputs active Inputs disabled Inputs active Inputs disabled Audio & video outputs ON Audio & video outputs OFF Audio & video outputs on audio & video outputs OFF Audio & video outputs ON Audio & video outputs OFF Audio & video outputs ON Audio & video outputs OFF Only IC bus and slow blanking detection parts are supplied. Comments
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IC bus selection
STV6412B
Table 25: Output signals (read mode)
Reg Addr (Hex) Data Description Bits d7 Slow blanking TV SCART Slow blanking VCR SCART 2 X X X X X X X X d6 X X X X X X X X d5 X X X X X X X X d4 X X X X X X 0 1 d3 X X X 0 1 1 X X d2 X X X 1 0 1 X X d1 0 1 1 X X X X X d0 1 0 1 X X X X X Input < 2 V Input 16/9 format Input 4/3 format Input < 2 V Input 16/9 format Input 4/3 format No change since read One change has been detected (refer to Note 1) Comments
2
Interrupt flag
1
Note:
1
The interrupt flag will be cleared when this register is read. To prepare for a new interrupt, a "1" must be re-written in the IT Enable bit (Reg. 04h, d7).
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STV6412B
Input/output groups
4
Figure 7.
Input/output groups
Bottom clamped video inputs (pins Figure 8. 2, 4, 6, 12, 14, 18, 21, 62, and 64) Average clamped video inputs (pin 8)
VCC 5 V VCC 5 V VCC 5 V VCC 5 V IB 2 V + VD 25 k 25 k 3V
15 k tri tri
Protected pad
Protected pad
R/C clamped video inputs (pins 10 and 60)
Figure 9.
Fast blanking output (pin 49)
VCCB1 5 V VCC 5 V
R/C inputs may be configured either as a bottom clamped input or as an average clamped input. In either case, the simplified input schematic is very close to one of the graphics shown above
Protected pad
Figure 10. Fast blanking inputs (pins 50 and 51)
Figure 11. Video outputs (pins 38, 40, 42, 44, 46, and 48
VCCB1,2 ...5 5 V VCC 5 V
VDD 5 V
ib
tri
Protected Pad Protected pad
Protected pad
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Input/output groups
STV6412B
Figure 12. Audio inputs (pins 11, 13, 19, 20, 22, and 23)
12 V
Figure 13. Audio outputs (pins 27, 28, 29, 30, 32 and 33)
I2 V
9 k 2 k 8 k IB 24 k 13 k 24 k
32 k
Protected pad
VREF
Protected pad
Figure 14. Slow blanking I/O (pins 59 and 61)
Figure 15. Interrupt output (pin 58)
VDD 5 V 12 V
Float
40
110 k
55 k
Protected pad
Protected pad
Figure 16. IC bus (SDA) (pin 56)
Figure 17. IC bus (ADD) (pin 54)
VDD 5 V
Float
VDD 5 V
Float
10 k
10 k
Protected pad
Protected pad
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STV6412B Figure 18. IC bus (SCL) (pin 55)
VDD 5 V
Input/output groups
Float
10 k
Protected pad
Figure 19. Power supply connection
VCCB1 VCCB2
VCCB3 VCCB4 VCCB5
VCC
VCCA0
VCCA
VCC1
VDD
5V
47
45
5V
43
39
37
5V
1
5V
12 V
31 12 V
24
12 V
63 12 V
5V
53
5V
41
5
17
25
57
GNDB
GNDV
GNDref
GNDA
GND
27/32
Application diagram
STV6412B
5
Note:
Application diagram
The application diagram presented here is an example only and is subject to change without notice. The real application diagram will depend on application conditions and constraints.
Figure 20. STV6412B application diagram
Modulator
4.43 MHz Trap
LOUT_TV
FILTER
VOUT_RF
AOUT_RF
BOUT_TV
VCCB5
GOUT_TV
VCCB4
R/COUT_TV
GNDB
Y/CVBSOUT_TV
VCCB3
Y/CVBSOUT_VCR
VCCB1
COUT_VCR
VCCB2
FBOUT_TV FBIN_VCR FBIN_ENC
ROUT_TV
VCCAO LOUT_VCR ROUT_VCR
NC VDD ADD SCL SDA GND IT_OUT SLB_TV R/CIN_VCR SLB_VCR
LOUT_CINCH ROUT_CINCH NC
STV6412B
GNDA VCCA RIN_TV LIN_TV CVBSIN_TV RIN_VCR
Y/CVBSIN_ENC
GIN_VCR
LIN_VCR
CVBSIN_AUX
R/CIN_ENC
GIN_ENC
CIN_ENC
RIN_ENC
YIN_ENC
RIN_AUX
BIN_ENC
LIN_ENC
LIN_AUX
VCC12 BIN_VCR
DECV
Y/CVBSIN_VCR GND
DECA
GND
NC
CVBS Input
VCC
Audio R Input
Audio L Input
AUX
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STV6412B
Package mechanical data
6
Package mechanical data
Figure 21. 64 pin, LQFP64 (low-profile quad flat package) 14 x 14 x 1.4 mm
Seating plane
Pin 1 identification
Gage plane
Table 26.
LQFP64 package dimensions
Millimeters Inches Max. 1.60 0.05 1.35 0.30 0.09 1.40 0.37 0.15 1.45 0.45 0.20 0.10 15.80 13.80 16.00 14.00 12.00 0.80 15.80 16.00 16.20 0.622 16.20 14.20 0.622 0.543 0.630 0.551 0.472 0.0315 0.630 0.638 0.002 0.053 0.0118 0.0035 0.055 0.015 Min. Typ. Max. 0.063 0.006 0.057 0.018 0.0079 0.0039 0.638 0.559
Dimensions Min. A A1 A2 b Typ.
c
ccc D D1 D3 e E
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Package mechanical data Table 26.
E1 E3 L L1 0.45
STV6412B
LQFP64 package dimensions (continued)
13.80 14.00 12.00 0.60 1.00 Degrees 0.75 0.018 14.201 0.543 0.551 0.472 0.024 0.039 0.030 0.559
k
0 minimum 3.5 typical 7 maximum
6.1
Environment
In order to meet environmental requirements, STMicroelectronics offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at www.st.com.
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STV6412B
Revision history
Revision history
Table 27.
Date 28-Jul-2008
Document revision history
Revision 1 Initial Release. Changes
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STV6412B
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