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INTEGRATED CIRCUITS
DATA SHEET
TEA6330T Sound fader control circuit for car radios
Preliminary specification Supersedes data of June 1991 File under Integrated Circuits, IC01 January 1992
Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
FEATURES * Stereo/hi-fi processor for car radios performed with volume, balance, bass and treble controls * Sound fader control (front/rear) down to -30 dB in steps of 2 dB * Fast muting via bus or via setting the muting pin * Suitable for external audio equalizers, can be looped-in controlled by the I2C-bus * Power-on reset on chip sets the device into general mute position * AC and DC short-circuit protected concerning neighbouring pins * I2C-bus control for all functions. QUICK REFERENCE DATA SYMBOL VP IP Vi Vo Gv supply voltage supply current maximum AF input signal (RMS value) maximum AF output signal (RMS value) volume control range, separated fader control range, separated bass control range treble control range THD S/N(W) CR B total harmonic distortion weighted signal-to-noise ratio crosstalk attenuation frequency response (-1 dB) - ORDERING INFORMATION EXTENDED TYPE NUMBER TEA6330T(1) Note PACKAGE PINS 20 PIN POSITION SO MATERIAL plastic 1.1 -66 0 -12 -12 - - - - - - - - - 67 90 35 to 20000 - - +20 -30 +15 +12 0.2 - - 2 - - PARAMETER 7 - MIN. 8.5 26 TYP. 10 - MAX. GENERAL DESCRIPTION
TEA6330T
This bipolar IC is an I2C-bus controlled sound/volume controller for car radios, in addition with fader function and the possibility of an external equalizer.
UNIT V mA V V dB dB dB dB % dB dB Hz
CODE SOT163A
1. Plastic small outline package; 20 leads; body width 7.5 mm; (SOT163A); SOT163-1; 1996 August 02.
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
TEA6330T
Fig.1 Block and test circuit.
Fig.2
Connection of equalizer (Table 7). In application with equalizer circuit TEA6360 coupling capacitors are not necessary. Connectors for RIGHT in brackets.
Fig.3
T-filter for enhanced bass control (Fig.5). Connectors for LEFT in brackets.
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
PINNING SYMBOL CPS IN-R GND1 CBR1 CBR2 CTR QRR QRF MUTE GND2 SCL SDA QLF QLR CTL CBL2 CBL1 VP IN-L Vref PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DESCRIPTION filtering capacitor for power supply audio input signal RIGHT analog ground (0 V) capacitor for bass control RIGHT and signal to equalizer capacitor for bass control RIGHT capacitor for treble control RIGHT, input signal for equalizer RIGHT right audio output signal of rear channel right audio output signal of front channel input to set mute externally digital ground (0 V) for bus control clock signal of I2C-bus data signal of I2C-bus left audio output signal of front channel left audio output signal of rear channel capacitor for treble control LEFT, input signal for equalizer LEFT capacitor for bass control LEFT capacitor for bass control LEFT and signal to equalizer +8.5 V supply voltage audio input signal LEFT reference voltage output (VP/2)
TEA6330T
Fig.4 Pin configuration.
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
FUNCTIONAL DESCRIPTION This bipolar IC is an I C-bus controlled sound/volume controller for car radios including fader function and the possibility of an external equalizer. The sound signal setting is performed by resistor chains in combination with multi-input operational amplifiers. The advantages of this principle are the combination of low noise, low distortion and a high dynamic range. The separated volume controls of the left and the right channel make the balance control possible. The value and the characteristic of the balance is controlled via the I2C-bus. The contour function is performed by setting an extra bass control and optional treble, depending on the actual volume position. Its switching points and its range are also controllable via the I2C-bus. An interface is assigned behind the volume control to loop-in an equalizer (Fig.2). In this case the treble control is switched off, and the bass control can be used to set the contour.
2
TEA6330T
Low level control fader is included independent of the volume controls, because the TEA6330T has four driver outputs (for front and rear). An extra mute position for the front, the rear or for all channels is built in. The last function may be used for muting during preset selection. No external interface is required between the microcomputer and this circuit, for all switching and controlling functions are controllable via the two-wire I2C-bus. The separate mute-pin allows to switch the fader into mute position without using the I2C-bus. The on chip power-on reset sets the TEA6330T into the general mute mode.
LIMITING VALUES In accordance with the Absolute Maximum System (IEC 134). Ground pins 3 and 10 connected together. SYMBOL VP Ptot Tstg Tamb VESD supply voltage (pin 18) total power dissipation storage temperature range operating ambient temperature range electrostatic handling* for all pins electrostatic handling** for all pins * Equivalent to discharging a 200 pF capacitor through a 0 series resistor. ** Equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor. PARAMETER 0 0 -55 -40 - - MIN. MAX. 10 700 150 85 300 4000 V mW C C V V UNIT
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
TEA6330T
CHARACTERISTICS VP = 8.5 V; load resistors at audio outputs 10 k, fi = 1 kHz (RS = 600 ), bass and treble in linear position, fader in off position and Tamb = 25 C; measurements taken in Fig.1 unless otherwise specified. SYMBOL VP IP Vref VO Vi Vo Gv B CR THD PARAMETER supply voltage range (pin 18) supply current reference voltage (pin 20) DC voltage at output (pins 7, 8, 13, 14) Gv = -66 to -6 dB and VP = 8.1 V Gv = -4 to +20 dB and VP = 8.1 V -1 dB roll-off frequency - crosstalk attenuation total harmonic distortion Vi (RMS) = 50 mV Vi (RMS) = 500 mV Vi (RMS) = 1.6 V RR ripple rejection for VR < 200 mV RMS f = 250 to 10000 Hz Gv = 0 dB f = 20 to 12500 Hz Gv = +20 dB Gv = 0 dB Gv = -10 dB Gv = 0 dB f = 100 Hz f = 40 Hz to 3 kHz f = 3 to 12.5 kHz PN noise power at output of a 25 W powerstage with 26 dB gain (only contribution of TEA6330T) mute position (V9 = 0) - - - 70 60 50 - - - dB dB dB - - - 0.1 0.05 0.2 0.3 0.2 0.5 % % % 70 90 - dB 1.1 19 - 20 35 to 20000 - Hz - 21 V dB 2 - - V CONDITIONS 7 - 0.45 VP - MIN. TYP. 8.5 26 0.5 VP 0.5 VP - 0.55 VP - MAX. 10 UNIT V mA V V
Measurements over all maximum AF input level for THD = 2 % at pins 2 and 19 (RMS value) maximum AF output level for THD = 2% at pins 7, 8, 13, 14 (RMS value) maximum gain by volume setting frequency response
- -
- 110
10 -
nW dB
BUS
crosstalk attenuation between SDA, SCL and signal output Gv = 0 dB (20 log VBUS (p-p)/Vo RMS) weighted signal-to-noise ratio for CCIR 468-2 quasi peak for 6 W power amplifier Po = 50 mW Po = 50 mW Po = 1 W Po = 1 W Po = 6 W; Fig.9 Po = 6 W; Fig.9
S/N(W)
Vi = 50 mV RMS Vi = 500 mV RMS Vi = 50 mV RMS Vi = 500 mV RMS Vi = 50 mV RMS Vi = 500 mV RMS
- - 65 71 - -
65 67 72 78 72 86
- - - - - -
dB dB dB dB dB dB
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
SYMBOL PARAMETER CONDITIONS MIN. - 100 - - TYP.
TEA6330T
MAX. - 150 - 2.5
UNIT
Audio frequency outputs QLF, QRF, QLR and QRR Vo Ro RL CL VN(W) maximum output signal (RMS value) output resistance (pins 7, 8, 13 and 14) admissible output load resistor admissible output load capacitor weighted noise voltage at output for maximum gain for 0 dB gain for minimum gain for mute position Volume control Rl Gv Gv input resistance (pins 2 and 19) volume control range step width gain set error gain tracking error mute Gv mute attenuation at volume mute Bass control controllable bass range maximum boost maximum boost maximum attenuation maximum attenuation Gv Gv step width Treble control controllable treble range maximum boost maximum boost maximum boost maximum attenuation maximum attenuation Gv step width Table 4; Fig.7 f = 10 kHz f = 15 kHz f > 15 kHz f = 10 kHz f = 15 kHz f = 15 kHz 9 11 - 9 11 2.5 10 12 - 10 12 3 11 13 15 11 13 3.5 dB dB dB dB dB dB Table 3; Fig.6 f = 40 Hz f = 100 Hz f = 40 Hz f = 100 Hz f = 40 Hz 14 12 11 10 2.5 15 13 12 11 3 16 14 13 12 3.5 dB dB dB dB dB Gv = -50 to +20 dB Gv = -66 to -50 dB balance in mid position set mute-bits Table 2 CCIR 468-2 ; Fig.8 quasi peak Gv = +20 dB Gv = 0 dB Gv = -66 dB (V9 = 0) RG = 600 35 -66 - - - - 76 50 - 2 - - - 90 65 +20 2 3 2 - k dB dB dB dB dB dB - - - - 110 25 19 11 220 50 38 22 V V V V to ground or VCC 1.1 - 7.5 - V k nF
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
SYMBOL Fader control Gv fader control range step width MUTE Vo mute attenuation DC offset output voltage (pins 7, 8, 13, 14) between any adjoining volume step and any step to mute in any treble and fader position in any bass position External mute (pin 9) V9 input voltage for MUTE-ON (LOW) input voltage for MUTE-OFF (HIGH) input voltage for MUTE-OFF I9 input current I2C-bus, SCL and SDA (pins 11 and 12) V11, 12 I11, 12 VACK VP input voltage HIGH-level input voltage LOW-level input current output voltage at acknowledge (pin 12) supply voltage for start of reset supply voltage for end of reset supply voltage for start of reset I12 = -3 mA increasing voltage increasing voltage decreasing voltage 3 0 - - - 5.2 4.2 - - - - - 6.0 5.0 fader is switched into general mute position Tables 2 and 5 pin 9 open-circuit 0 3 - - - - 5 - Gv = -66 to 0 dB Gv = 0 to +20 dB Gv = -66 to 0 dB Gv = -66 to 0 dB - - - - 0.2 2 - - GMB-bit = 1; Table 6 Table 5 - 1.5 74 0 to -30 2 84 PARAMETER CONDITIONS MIN. TYP.
TEA6330T
MAX.
UNIT
- 2.5 -
dB dB dB
10 15 10 10
mV mV mV mV
1.5 VP - 10
V V V A
VP 1.5 10 0.4 2.5 6.8 5.8
V V A V V V V
Power-on reset, when reset is active the GMU-bit (general mute) is set and the bus receiver is in reset position
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
TEA6330T
Fig.5 Bass control with enhanced control range (T-filter coupling, Fig.1).
Fig.6 Bass control with normal control range (Fig.1).
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
TEA6330T
Fig.7 Treble control.
Fig.8 Noise voltage on outputs (CCIR 468-2 weighted, quasi-peak).
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
TEA6330T
Fig.9
Signal-to-noise ratio (CClR 468-2 weighted, quasi-peak) for TEA6330T with a 6 W power amplifier (20 dB gain, Fig.10). Measurements without noise contribution of the power amplifier.
Fig.10 Signal-to-noise ratio measurement (Fig.9) with Vi = 50 mV RMS, Vo = 500 mV RMS for Pmax = 6 W.
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
I2C-BUS PROTOCOL I2C-bus format S SLAVE ADDRESS A SUBADDRESS A
TEA6330T
DATA
P
S SLAVE ADDRESS A SUBADDRESS DATA P X
= = = = = = =
start condition 1000 000X acknowledge, generated by the slave subaddress byte, Table 1 data byte, Table 1 stop condition read/write control bit X = 0, order to write (the circuit is slave receiver only)
If more than 1 byte DATA are transmitted, then auto-increment of the subaddress is performed. Byte organisation Table 1 I2C-bus transmission DATA BYTE FUNCTION volume left volume right bass treble fader audio switch 0 0 0 0 0 0 0 0 0 0 0 0 SUBADDRESS BYTE D7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 0 0 0 0 GMU D6 0 0 0 0 0 EQN D5 VL5 VR5 0 0 MFN 0 D4 VL4 VR4 0 0 FCH 0 D3 VL3 VR3 BA3 TR3 FA3 0 D2 VL2 VR2 BA2 TR2 FA2 0 D1 VL1 VR1 BA1 TR1 FA1 0 D0 VL0 VR0 BA0 TR0 FA0 0
Function of the bits: VL0 VR0 BA0 TRO FA0 FCH MFN GMU EQN to to to to to VL5 VR5 BA3 TR3 FA3 volume control of left channel (balance control) volume control of right channel (balance control) bass control of both channels treble control of both channels fader control front to rear select fader channels front or rear mute control of the selected channels front or rear mute control, general mute equalizer switchover (0 = equalizer-on)
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
Table 2(a) Volume setting LEFT GV DB +20 +18 +16 +14 +12 +10 +8 +6 +4 +2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 VL5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VL4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 DATA VL3 VL2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 VL1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 VL0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 mute left mute left ------mute left 0 0 0 0 1 1 0 0 ------0 0 0 0 GV DB -32 -34 -36 -38 -40 -42 -44 -46 -48 -50 -52 -54 -56 -58 -60 -62 -64 -66 VL5 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 VL4 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 DATA VL3
TEA6330T
VL2 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
VL1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0
VL0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
1 1
1 0 -------
0
0
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
Table 2(b) Volume setting RIGHT GV DB +20 +18 +16 +14 +12 +10 +8 +6 +4 +2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 VR5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VR4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 DATA VR3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 VR2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 VR1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 VL0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 mute right mute right ------mute right 0 0 0 0 1 1 0 0 ------0 0 0 0 GV DB -32 -34 -36 -38 -40 -42 -44 -46 -48 -50 -52 -54 -56 -58 -60 -62 -64 -66 VR5 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 VR4 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 DATA VR3 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0
TEA6330T
VR2 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
VR1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0
VL0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
1 1
1 0 -------
0
0
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
Table 3(a) Bass setting with equalizer passive (EQN =1) GV DB +15 +15 +15 +15 +12 +9 +6 +3 0 -3 -6 -9 -12 -12 -12 D3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 D2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 DATA D1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 D0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0
TEA6330T
Table 3(b) Bass setting with equalizer active (EQN = 0) GV DB +15 +15 +15 +15 +12 +9 +6 +3 0 0 0 0 0 0 0 D3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 D2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 DATA D1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 D0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0
Table 4(a) Treble setting with equalizer passive (EQN = 1) GV DB +12 +12 +12 +12 +12 +9 +6 +3 0 -3 -6 -9 -12 -12 -12 January 1992 D3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 D2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 DATA D1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 D0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 15
Table 4(b) Treble setting with equalizer active (EQN = 0) GV DB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 D2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 DATA D1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 D0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0
Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
Table 5(a) Fader function front SETTING FRONT REAR DB 0 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -84 -------84 0 0 1 DB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MFN FCH FA3 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 ------0 0 0 FA2 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 FA1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 FA0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 ------0 0 DATA Table 5(b) Fader function rear SETTING FRONT REAR DB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 DB 0 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -84 -------84 0 0 MFN FCH FA3 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 ------0
TEA6330T
DATA
FA2 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1
FA1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1
FA0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 -------
fader-off
fader-off
fader-front
fader rear
mute front
mute rear
0
0
0
Table 6 Mute control MUTE CONTROL active DATA GMU-BIT 1 REMARKS outputs QLF, QLR, QRF and QRR are muted
Table 7 Equalizer EQUALIZER CONTROL active DATA EQN-BIT 0 REMARKS signal outputs for equalizer are pins 4 and 17, inputs are pins 6 and 15; Tables 3(b) and 4(b) no general mute; Tables 3(a) and 4(a)
passive
0
no general mute
passive
1
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
PACKAGE OUTLINE SO20: plastic small outline package; 20 leads; body width 7.5 mm
TEA6330T
SOT163-1
D
E
A X
c y HE vMA
Z 20 11
Q A2 A1 pin 1 index Lp L 1 e bp 10 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 13.0 12.6 0.51 0.49 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
8o 0o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT163-1 REFERENCES IEC 075E04 JEDEC MS-013AC EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-01-24 97-05-22
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). Reflow soldering Reflow soldering techniques are suitable for all SO packages. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 C. Wave soldering Wave soldering techniques can be used for all SO packages if the following conditions are observed: * A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. * The longitudinal axis of the package footprint must be parallel to the solder flow. * The package footprint must incorporate solder thieves at the downstream end.
TEA6330T
During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Maximum permissible solder temperature is 260 C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 C within 6 seconds. Typical dwell time is 4 seconds at 250 C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Repairing soldered joints Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C.
January 1992
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Philips Semiconductors
Preliminary specification
Sound fader control circuit for car radios
DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TEA6330T
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
January 1992
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