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| Multimedia ICs Input selector for high resolution displays BH7659S The BH7659S is an input signal switching IC developed for high resolution displays that has three fc = 250MHz wideband video switching circuits for RGB video signal switching and four CMOS analog switching circuits for switching between HD and VD signals as well as I2C bus signals (SDA and SCL). *Applications displays and high-definition TVs High-resolution *Features with a 5V power supply voltage. 1) Operates 2) Built-in, wide-band switching circuit for RGB switching (fc = 250MHz). 3) SDA and SCL as well as HD and VD signal switching is possible. 4) Built-in power save function. *Absolute maximum ratings (Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 8.0 1300 - 25 ~ + 75 - 55 ~ + 125 Unit V mW C C Reduced by 13mW for each increase in Ta of 1C over 25C. *Recommended operating conditions (Ta = 25C) Parameter Operating power supply voltage Not designed for radiation resistance. Symbol VCC Min. 4.5 Typ. 5.0 Max. 5.5 Unit V 1 Multimedia ICs BH7659S *Block diagram RINA 1 32 RVCC A RGND 2 R 31 ROUT B GINA 3 30 GVCC A GGND 4 G 29 GOUT B BINA 5 28 BVCC A BGND 6 B RINB 7 26 HDOUT B 27 BOUT PSH 8 POWER SAVE A 25 HDINA GINB 9 B 24 HDINB VDD 10 23 SCLIO BINB 11 A 22 SCLIOA N.C. 12 21 N.C. CTL 13 CTL B 20 SCLIOB A VDINA 14 A 19 SDAIOA B VDINB 15 B 18 SDAIOB VDOUT 16 17 SDAIO 2 Multimedia ICs BH7659S *Input / output equivalent circuits Pin No. Pin description (pin name) Reference potential Input / output circuit Function VCC 1 3 5 Red signal input A (RINA) Green signal input A (GINA) Blue signal input A (BINA) Red signal input B (RINB) Green signal input B (GINB) Blue signal input B (BINB) 3.5V when selected 0V when not selected8 3.7V 10k Switches between the two RGB signaling systems. Input B is selected by setting the CTL pin to high and input A to low. 2k 7 9 11 VCC 27 Blue signal output (BOUT) Green signal output (GOUT) Red signal output (ROUT) 1.85V Power save activates by setting the PSH pin to high. 500 2k 29 31 VCC 8 Power save input (PSH) 0V Control input (CTL) 50k 3.25V PSH Power save off Power save on CTL Input A Input B 1.5V 3.5V 9 3.5V 1.5V 3 Multimedia ICs BH7659S Pin No. 14 15 16 Pin description (pin name) VD signal input A (VDINA) VD signal input B (VDINB) VD signal output (VDOUT) SDA signal I / O (SDAIO) SDA signal I / O B (SDAIOB) SDA signal I / O A (SDAIOA) SCL signal I / O B (SCLIOB) SCL signal I / O A (SCLIOA) SCL signal I / O (SCLIO) HD signal input B (HDINB) HD signal input A (HDINA) HD signal output (HDOUT) Red ground (RGND) Green ground (GGND) Reference potential Input / output circuit Function 17 18 19 VDD IN OUT Switches between the two VD, HD, SDA, and SCL signaling systems. Input B is selected by setting the CTL pin to high and input A to low. Bi-directional I / O is possible with CMOS analog switch 0V 20 22 24 25 26 27 2 0V -- Red video SW block GND 4 0V -- Green video SW block GND 6 Blue ground (BGND) 0V -- Blue video SW block and CMOS SW block GND 10 CMOS power supply voltage (VDD) 5V -- CMOS SW block VDD 28 Blue power supply voltage (BVCC) Green power supply voltage (GVCC) 5V -- Blue video SW block VCC 30 5V -- Green video SW block VCC 32 Red power supply voltage (RVCC) 5V -- Red video SW block VCC 4 Multimedia ICs BH7659S *Electrical characteristics (unless otherwise noted, VCC = 5.0V, Ta = 25C) Parameter Overall device Circuit current Circuit current during power save R, G, and B video switches Voltage gain Interchannel relative gain Interblock relative gain Output dynamic range CMOS analog switch On-resistance Interchannel on-resistance difference Interchannel crosstalk Transmission delay time Control block High level voltage Low level voltage VH VL 3.5 -- -- -- -- 1.5 V V -- -- RON RON CT tD -- -- -- -- 200 20 - 70 20 400 40 - 55 -- dB ns VIN = 2.5V VIN = 2.5V f = 150kHz RL = 10, CL = 50pF GV GVC GVB VOM - 1.0 - 0.5 - 0.5 2.6 - 0.5 0 0 -- 0 0.5 0.5 -- dB dB dB VP-P f = 10MHz f = 10MHz f = 10MHz f = 1kHz ICC IPSV 15 7 25 14 35 22 mA mA PS = "H" -- Symbol Min. Typ. Max. Unit Conditions *Guaranteed design parameters (unless otherwise noted, VCC = 5V, Ta = 25C) Parameter R, G, and B video switches Frequency characteristics 1 Frequency characteristics 2 Interchannel relative frequency characteristics Interblock relative frequency characteristics Interchannel crosstalk 1 Interchannel crosstalk 2 Interblock crosstalk 1 Interblock crosstalk 2 f1 f2 fC fB CTC1 CTC2 CTB1 CTB2 - 3.0 - 6.0 - 0.5 - 0.5 -- -- -- -- 0 -3 0 0 - 50 - 30 - 50 - 30 + 1.0 - 1.0 0.5 0.5 - 35 - 15 - 35 - 15 dB dB dB dB dB dB dB dB f = 50MHz f = 250MHz f = 50MHz f = 50MHz f = 50MHz f = 250MHz f = 50MHz f = 250MHz Symbol Min. Typ. Max. Unit Conditions 5 Multimedia ICs BH7659S *Measurement circuit 1 VCC 1 + C1 + + A AM 2 1 32 SW1 C2 C1 C2 2 31 C1 1 + 3 30 SW3 2 C2 C1 C1 = 0.01F C2 = 47F C3 = 50PF R1 = 75 R2 = 10k V1 = 1.5V V2 = 3.5V C2 4 29 C1 + R1 1 + 5 28 SW5 2 OSC1 C2 C1 C2 6 27 3 C1 1 + C3 SW23 7 26 2 1 R OSC 2 2.5V SW25 8 SW8 OSC 2 2.5V SW24 9 24 2 + + SW7 2 C2 V1 1 V2 2 C1 3 R1 2 + 25 V3 C2 C1 V3 C2 SW23 3 C3 1 1 SW9 2 C2 3 R1 1 C1 10 23 + 2 OSC 2 2.5V SW22 3 R1 2 + R C2 C1 1 + 1 11 22 V3 C2 SW11 2 C2 1 N. C. 12 21 N. C. OSC 2 V2 C1 C2 V3 2.5V 1 2 R1 3 SW14 14 OSC 2 SW18 15 1 2 R1 3 SW15 OSC 2 C3 R2 1 16 2 SW16 17 + + 2.5V SW20 13 SW13 20 2 + 1 V1 2 3 R1 V3 C2 C1 SW19 OSC 2 2.5V 3 R1 2 OSC 2 2.5V 3 R1 2 + + 1 19 V3 C2 C1 1 C1 C2 V3 2.5V 18 V3 C2 C1 SW17 2 1 R 3 C3 1 3 6 Multimedia ICs BH7659S *Measurement circuit 2 VCC A AM OSC R1 C2 C1 + + 1 32 + C2 C1 2 31 Ro C1 3 30 + C2 C1 C1 = 0.01F C2 = 47F R1 = 50 Ro = 130 Ro OSC R1 C2 4 29 C1 + 5 28 + C2 C1 OSC R1 C2 6 27 Ro C1 7 26 + OSC R1 C2 8 25 C1 9 24 + OSC R1 C2 C1 10 23 + C2 C1 11 22 + OSC R1 C2 N. C. 12 21 N. C. VCC IN: A 1 IN: B CTL 13 20 14 19 15 18 16 17 7 Multimedia ICs BH7659S *Measurement conditions circuit 1 Overall device measurement Parameter 8 Circuit current Circuit during power save 1 2 Switch conditions Others 1 1 (1) (2) Notes R, G, and B video switches measurement circuit 2 Parameter 1 Voltage gain (GV) Output dynamic range (VOM) Frequency characteristics 1 (f1) RinA RinB GinA GinB BinA Frequency characteristics 2 (f2) Interchannel crosstalk 1 (CTC1) Interchannel crosstalk 2 (CTC2) Interblock crosstalk 1 (CTB1) Interblock crosstalk 2 (CTB2) Interchannel relative gain: GVC Interblock relative gain: GVB Interchannel relative frequency characteristics: fC Interblock relative frequency characteristics: fB BinB RinAB RinBA GinAB GinBA BinAB BinBA GRinA BRinA RGinA BGinA RBinA GBinA K -- -- -- -- -- K -- -- -- -- -- -- -- K -- K -- 7 -- K -- -- -- -- -- K -- -- -- -- -- -- -- -- -- -- Input pin: (OSC) 3 -- -- K -- -- -- -- -- K -- -- -- K -- -- -- -- K 9 -- -- -- K -- -- -- -- -- K -- -- -- -- -- -- -- -- 5 -- -- -- -- K -- -- -- -- -- K -- -- K -- K -- -- 11 -- -- -- -- -- K -- -- -- -- -- K -- -- -- -- -- -- Switch conditions CTL IN: A IN: B IN: A IN: B IN: A IN: B IN: B IN: A IN: B IN: A IN: B IN: A IN: A IN: A IN: A IN: A IN: A IN: A (4) (5) (9) (10) (14) (13) (12) (8) (11) (7) (3) (6) Notes 8 Multimedia ICs C-ROM analog switch measurement circuit 1 Parameter 13 On-resistance (RON) VDinA VDinB SDinA SDinB SCinA SCinB HDinA HDinB Interchannel crosstalk (CT) VDinAB VDinBA SDinAB SDinBA SCinAB SCinBA HDinAB HDinBA Transmission delay VDinA time (tD) VDinB SDinA SDinB SCinA SCinB HDinA HDinB 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 14 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 15 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 16 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 17 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 Switch conditions 18 19 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 20 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 22 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 23 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 24 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 25 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 26 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 BH7659S Notes others 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 (16) (18) (17) (15) Interchannel on-resistance difference (RON) Notes: (1) Circuit current: ICC; measurement of the circuit current. (2) Circuit current during power save: IPSV; measurement of the circuit current during power save. (3) Voltage gain: GV VIN = 1.0VP-P, f = 10MHz sine wave input from the OSC GV = 20log (VOUT / VIN) [dB] (4) Interchannel relative gain: GVC GVC = GVRa - GVRb, GVGa - GVGb, GVBa - GVBb [dB] (5) Interblock relative gain: GVB GVBR = GVRa - GVGa, GVRa - GVGb, GVRa - GVBa, GVRa - GVBb [dB] GVBG = GVGa - GVRa, GVGa - GVRb, GVGa - GVBa, GVGa - GVBb [dB] GVBB = GVBa - GVRa, GVBa - GVRb, GVBa - GVGa, GVBa - GVBb [dB] (6) Output dynamic range: VOM Connect a distortion meter to the output. After adding a f = 1kHz sine wave input from the OSC, adjust the input level so that the output distortion is 1.0%. The output voltage at that time is VOM [VP-P]. 9 Multimedia ICs (7) Frequency characteristics 1: f1 Apply to the input pin a VIN = 1.0VP-P, f = 10MHz and 50MHz sine wave input from the OSC. f1 = GV (50MHz) - GV (10MHz) [dB] (8) Frequency characteristics 2: f2 Apply to the input pin a VIN = 1.0VP-P, f = 10MHz and 250MHz sine wave input from the OSC. f2 = GV (250MHz) - GV (10MHz) [dB] (9) Interchannel relative frequency characteristics: fc fc = f1 (INA) - f1 (INB) [dB] (10) Interblock relative frequency characteristics: fb fb = f1 (RINA) - f1 (GINA), f1 (GINA) - f1 (BINA), f1 (BINA) - f1 (RINA) [dB] = f1 (RINB) - f1 (GINB), f1 (GINB) - f1 (BINB), f1 (BINB) - f1 (RINB) [dB] (11) Interchannel crosstalk 1: CTC1 Apply to the input pin a VIN = 1.0VP-P, f = 50MHz sine wave input from the OSC. CTC1 = 20log (VOUT / VIN) [dB] (12) Interchannel crosstalk 2: CTC2 Apply to the input pin a VIN = 1.0VP-P, f = 250MHz sine wave input from the OSC. CTC2 = 20log (VOUT / VIN) [dB] (13) Interblock crosstalk 1: CTB1 Apply to the input pin a VIN = 1.0VP-P, f = 50MHz sine wave input from the OSC. CTB1 = 20log (VOUT / VIN) [dB] (14) Interblock crosstalk 2: CTB2 Apply to the input pin a VIN = 1.0VP-P, f = 250MHz sine wave input from the OSC. CTB2 = 20log (VOUT / VIN) [dB] (15) On-resistance: RON RON = (VOUT / VIN - 1) x 104 [] (16) Interchannel on-resistance difference: RON RON = RON (INA) - RON (INB) (17) Interchannel crosstalk: CT Apply to the input pin a VIN = 1.0VP-P, f = 150MHz sine wave input from the OSC2. CT = 20log (VOUT / VIN) [dB] (18) Transmission delay time: tD Apply to the input pin the rectangular wave of P1 from the OSC2. BH7659S 20ns VCC Input: P1 100ns f = 150kHz 50% 0V Output 50% tD 10 Multimedia ICs BH7659S *Application example Input A R G B VD R4 SDA R4 SCA R4 HD R4 5. 1 6 Input B R G B C1 VD + C1 + VCC R2 1 A R B 3 A 4 G B 5 A B B 27 Ro 28 + VCC 32 + C2 R1 C1 31 Ro C2 2 C1 + R OUT VCC VCC R2 5. 1 R1 5. 1 C2 30 + C1 29 Ro C2 G OUT VCC C1 5. 1 + VCC R2 C2 R1 C1 C2 B OUT HD OUT C1 + VCC R2 7 C2 R1 R4 PS:H C3 VCC 26 R3 A 25 R3 B 8 POWER SAVE R4 SDA R4 SCA R4 HD R4 5. 1 VCC R1 5. 1 C1 5. 1 + 9 C2 R2 24 R3 SCL IO 10 C2 C1 C2 R1 VCC R2 11 A 23 R3 22 R3 5. 1 12 N. C. N. C. 21 CTL IN A: H IN B: L R4 13 C3 R3 14 A CTL B 20 R3 A 19 R3 R3 15 B B 18 R3 VD OUT R3 16 17 R3 SDA IO Note: The RO value differs depending on the load capacitance. Set so that the frequency characteristics are flat. R1 = 75 C1 = 0.01F R2 = 47 C2 = 47F R3 = 100 C3 = 0.1F R4 = 1.2k 11 Multimedia ICs BH7659S *External dimensions (Units: mm) 28.0 0.3 32 17 8.4 0.3 1 0.51Min. 16 10.16 3.2 0.2 4.7 0.3 0.3 0.1 1.778 0.5 0.1 0 ~ 15 SDIP32 12 |
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