TA1275BFNG TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA1275BFNG SECAM Demodulator Processor The TA1275BFNG is a SECAM demodulation IC, used in combination with the TB1309 series to achieve a multicolor system. This IC requires very few external parts. Features Combines with the TB1309 series, which is a video processor, timing controller, and PWM pulse processor for analog LCDs Built-in bell filter SSOP24-P-300-0.65A Built-in FM demodulator with PLL circuit for color demodulation and SECAM identification Weight: 0.09 g (typ.) DC voltage offset for demodulated signal adjuster Input terminals for external R-Y / B-Y signals Pin Connection 13 B-Y OUT B-Y BLACK CONT ID FILTER R-Y BLACK CONT EXT. R-Y IN R-Y OUT Vcc 5V (Y/C) DL MODE SW 1 2 3 4 5 6 7 8 9 10 11 12 1 EXT. B-Y IN N.C. Y OUT BELL MON BELL f0-ADJ. FILTER 14 GND Y IN 15 SECAM ID I/O BELL CONT 16 f0-ADJ. FILTER 17 H/H+V ID SW 18 C IN S-LOW PASS SW 19 4.43CW-IN GATE WIDTH 20 N.C. 21 N.C. 22 Vcc 5V (Pulse) 23 SCP in 24 2005-03-14 TA1275BFNG Block Diagram P/N 3V B/W 2V 24 5 22 3.95V 2.7V 1.6V SCP in BELL f0-ADJ. FILTER 19 4.43CW-IN GATE WIDTH H/H+V ID SW 6 BELL CONT 5.5MTRAP 13 f0-ADJ. FILTER 250ns Y-DL 20 SECAM ID I/O 23 ID FILTER Y IN 8 C IN/ S-LOW PASS SW + DL MODE SW 1V (p-p) 4 1 CLAMP FLIP/FL OP SYS-I/O R. BLACK CONT SIDENT f0-ADJ -DET LOGIC GP/H/V SEPA PULSE f0SHIFT -DAC BELL DAC GateWidth/S W REFBIAS 4.43MCW P/N/S R-Y SW R-Y LowPass R-Y De-emp R-Y PERMU LOW PASS 4.43M VCO BELLMON BELLADJDET P/N/S B-Y SW B-Y LowPass B-Y De-emp B-Y PERMU DEMO PHASEDET LIMIT BELLFILTER SW B. BLACK CONT 10 Y OUT BELL MON R-Y OUT B-Y OUT EXT. B-Y IN EXT. R-Y IN B-Y BLACK CONT R-Y BLACK CONT 2 15 18 3 17 21 N.C. 12 N.C. 14 N.C. 16 ACC CONT GND 11 IDENT AMP LOW PASS SW Vcc 5V (Y/C) 9 1/2 TRAP Vcc 5V (Pulse) 7 COLOR AMP Some functional blocks, circuits or constants may be omitted or simplified in the block diagram for explanatory purposes. 2 2005-03-14 TA1275BFNG Maximum Ratings (Ta = 25°C) Characteristic Supply voltage Symbol Power consumption reduction ratio Unit VCCmax 8 V Vin GND - 0.3 ~ Vcc + 0.3 V PD (Note) 780 mW 1 / Qja 6.3 mW / °C Input pin voltage Power consumption Rating Operating temperature Topr −30~85 °C Storage temperature Tstg −55~150 °C Note: When using the device at above TA = 25°C, decrease the power dissipation by 9.1 mW for each increase of 1°C. The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetime of the device can no longer be guaranteed. Moreover, operations with exceeded ratings may cause breakdown, damage and/or degradation in other equipment. Applications using the device should be designed so that no maximum rating will ever be exceeded under any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in these documents. Operating Conditions Characteristic Description Min Typ. Max Unit Supply voltage Pin 2, 15 4.75 5.0 5.25 ― Y Input signal level White: 100%, including sync. 0.9 1.0 1.1 V (p-p) Color difference input level Burst level 270 300 330 mV (p-p) SCP input level 4.43 MHz CW input level G level 3.25 4.0 5.0 H level 1.95 2.1 2.6 V level 1.1 1.25 1.4 Pin 4 200 ― ― V mV (p-p) Electrical Characteristics (YC VCC / Pulse VCC = 5 V, Ta = 25°C, unless otherwise specified) Current Consumption Symbol Test Circuit Min Typ. Max VCC (Y / C) ICC1 ― 32.0 38.5 48.1 VCC (Pulse) ICC2 ― 5.6 6.7 8.4 Pin Name 3 Unit mA 2005-03-14 TA1275BFNG Terminal Voltage Pin No. Pin Name Symbol Test Circuit Min Typ. Max 4 4.43 MHz CW-IN V4 ― 2.50 2.75 3.00 5 ID SW V5 ― 2.30 2.50 2.70 6 SECAM ID I / O (killer OFF) V6 ― 0.00 0.20 0.60 7 Y OUT V7 ― 2.35 2.55 2.75 8 MODE SW V8 ― 1.80 2.00 2.20 9 R-Y OUT V9 ― 2.10 2.40 2.70 10 R-Y BLACK CONTROL V10 ― 2.30 2.50 2.70 11 B-Y OUT V11 ― 2.10 2.40 2.70 12 B-Y BLACK CONTROL V12 ― 2.30 2.50 2.70 13 S-ID FILTER (killer OFF) V13 ― 4.25 4.55 4.85 14 EXT. R-Y IN V14 ― 2.40 2.60 2.80 16 EXT. B-Y IN V16 ― 2.40 2.60 2.80 19 F0-ADJ. FILTER V19 ― 2.55 3.00 3.45 20 C IN V20 ― 3.50 3.70 3.90 22 BELL ADJ. FILTER V22 ― 2.20 2.50 2.80 23 Y IN V23 ― 2.30 2.50 2.70 24 BELL CONTROL V24 ― 4.80 5.00 5.20 Note: Unit V The pins numbered 1, 4, 9, 10, 12, 13, 14, 19, 20 and 24 of this product are sensitive to electrostatic discharge. When handling the product, protect the environment to avoid electrostatic discharge. 4 2005-03-14 TA1275BFNG Terminal Interface The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes. Pin No. Pin Name Function Interface Circuit Input/Output Signal 2 The pin for inputting the sand castle pulse (SCP) 1 SCP IN ― 1 18 2 Vcc 5 V (Pulse) VCC pin for logic block ― ― 3 N.C. (No Connection) Connect to GND. ― ― 15 4 4.43CW-IN GATE WIDTH The pin for inputting 4.43 MHz of carrier wave for the selfadjustment circuit. Input a 500 mVp-p sine wave through a coupling capacitor. The switch for changing the gate pulse width is overlaid on this pin. +200 nS : 0ns −200 nS : : ― 4 to VCC thru 33 kΩ open to GND thru 33 kΩ 18 5 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 2 The switch pin for selecting the ID detection mode. 5 H/H+V ID SW H+V : connected to VCC Auto search (H, V, H+V) : opened H : connected to GND ― 5 18 15 The interface pin to the main processor (i.e., TB1309). This input/output interface pin sinks two values of current corresponding to the ID level of the SECAM input signal. SECAM ID I / O Strong SECAM : 420 µA SECAM : 180 µA This pin turns the internal/external switch by the input DC voltage. Internal : GND~2.5 V External : 2.5 V~VCC ― 6 50ｋΩ 6 18 6 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 7 Y OUT BELL MON The output pin for the Y signal. The standard output level is 1.0 Vp-p. The 5.5 MHz trap filter and delay line on the Y signal processing is controlled by the switch on Pin 8. ― 7 The output signal of the bell filter can be monitored on this pin by switching Pin 20 for testing. 18 15 The pin for controlling the Y processing mode. 8 DL MODE SW To VCC Open : : To GND : 5.5 MHz trap 5.5 MHz trap + DL DL ― 8 18 7 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 9 R-Y OUT The output pin for demodulated R-Y signal. Standard output level is 0.7 Vp-p with a standard color bar signal. R-Y processor has an LPF to eliminate the carrier components. ― 9 18 15 10 R-Y BLACK CONTROL The pin for controlling the black offset level. Adjusting range is within ±30 mV. (This pin should be opened in the case of use with the TB1309as the TB1309 has an IIC BUS control for SECAM black alignment.) ― 10 18 8 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 11 B-Y OUT The output pin for demodulated B-Y signal. The standard output level is 0.56 Vp-p. The B-Y processor has an LPF to eliminate the carrier components. ― 11 18 15 The pin for controlling the black offset level. The adjusting range is within ±30 mV. 12 B-Y BLACK CONTROL (This pin should be opened in the case of use with the TB1309 as the TB1309 has an IIC BUS control for SECAM black alignment.) 12 ― 18 9 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 13 ID FILTER The pin for connecting the SECAM ident filter capacitor. Too large a capacitor causes a time delay obtaining color signal on a picture. Yet a weak RF signal performancegrows worse if the capacitor is too small. ― 13 18 15 14 EXT. R-Y IN The input pin for external R-Y signal. The gain of the internal amplifier is 0 dB. ― 14 18 15 Vcc 5 V (Y/C) The VCC pin for the Y/C processing block. ― 10 ― 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 16 EXT. B-Y IN The input pin for the external B-Y signal. The gain of the internal amplifier is 0 dB. ― 16 18 17 N.C. (No Connection) Connect to GND. ― ― 18 GND The GND pin. ― ― 15 The pin for connecting a capacitor for the automatic adjustment circuit. 19 f0-ADJ. FILTER Too large a capacitor causes a time delay obtaining a color signal on the picture. Yet picture noise and flickeringoccur if the capacitor is too small. ― 19 18 11 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output 15 20 C IN The chroma signal input pin. Apply composite signal through 0.01 µF of coupling capacitor. The standard input signal level is 1 Vp-p. ― 20 S-LOW PASS SW The bell monitor switch for testing is overlaid on this pin. When this pin is connected to GND through 27 kΩ, the bell filter output is observed on Pin 7 (Y-OUT). 18 21 N.C. (No Connection) Connect to GND. ― ― 15 The pin for connecting the filter capacitor for the bell filter f0, 4.286 MHz. 22 BELL f0-ADJ. FILTER Too large a capacitor causes a time delay on the bell filter f0 adjustment. Yet too small a capacitor causes the picture to be noisy. ― 22 18 12 2005-03-14 TA1275BFNG Pin No. Pin Name Function Interface Circuit Input/Output Signal 15 23 Y IN The Y signal input pin. Apply the composite signal into this pin through a coupling capacitor. ― 23 The standard input level is 1.0 Vp-p. 18 2 The pin for selecting the bell filter f0 24 BELL CONTROL f0+70 kHz : f0+35 kHz : f0 : OPEN (≈VCC) 20 kΩ to GND (≈1.7 V) to GND (≈0 V) ― 24 18 13 2005-03-14 TA1275BFNG AC Characteristics (Unless otherwise specified, VCC = 5 V (Pins 2 & 15), Ta = 25°C) No. Item Symbol Test Circuit Test Condition Rating Min Typ. Max Unit 1 Bell/Filter f0 f0B-C ― (Note 2) −23 0 30 kHz 2 Bell/Filter f0 Variable Range f0B-H f0B-L ― (Note 3) +40 +10 +70 +35 +100 +60 kHz kHz 3 Bell/Filter Q QBEL ― (Note 6) 14 16 18 ― ― (Note 7) 0.39 0.5 0.56 0.7 0.73 0.99 V (p-p) V (p-p) R / B-S ― (Note 8) 1.24 1.35 1.52 ― LinB LinR ― (Note 12) 93 93 100 100 107 107 % % trR trB ― (Note 13) ― ― 1.3 1.3 2.0 2.0 µs µs ― 3.5 5.2 3.9 MHz MHz 3.9 4.75 3.5 5.2 ― MHz MHz VBS 4 Color Difference Output Amplitude 5 Color Difference Relative Amplitude 6 Linearity 7 Rising Time 8 Demodulation Hold Range HRL HBH ― (Note 14) 9 Demodulation Capture Range CRL CBH ― (Note 15) 10 Killer Operation Input Level eSK eSC ― (Note 16) 0.15 0.40 0.30 0.65 0.60 1.20 mV (p-p) mV (p-p) 11 Black Level Offset ErR ErB ― (Note 18) −30 −30 0 0 +30 +30 mV mV 12 ID Voltage V6color V6B / W ― (Note 19) 0.12 4.8 0.2 4.9 0.6 5.0 V V 13 ID Current I6strongSE I6SE I6B / W ― (Note 20) 310 133 ― 420 180 0 530 225 10 µA µA µA 14 System SW Threshold Level V6P / N V6S ― (Note 21) 2.3 2.3 2.5 2.5 2.7 2.7 V V 15 Color Difference Output DC Level V9P / N V11P / N V9S V11S ― (Note 22) 2.3 2.3 2.1 2.1 2.6 2.6 2.4 2.4 2.9 2.9 2.7 2.7 V V V V 16 R-Y / B-Y Color Black Level Control Characteristics ∆ErR+ ∆ErR− ∆ErB+ ∆ErB− ― (Note 23) 22 −30 22 −30 26 −26 26 −26 30 −22 30 −22 mV mV mV mV 17 Ext. Color Difference Gain GEXTR GEXTB ― (Note 24) 0.8 0.8 1.0 1.0 1.2 1.2 ― ― 18 Gate Pulse Width Variable Range WGPGND WGP WGPVCC ― (Note 26) 1.7 1.9 2.1 1.8 2.0 2.2 1.9 2.1 2.3 µs µs µs 19 Y DL Characteristics (at 3 MHz) tYDL ― (Note 27) 180 250 360 ― 20 Y Trap Characteristics f0Y5.5 Gat f0 ― (Note 28) 4.5 ― 5.5 -35 6.5 -20 MHz dB 21 Y Input Dynamic Range DRYS DRYBW ― (Note 29) 0.9 1.1 1.0 1.25 1.1 1.4 V (p-p) V (p-p) 22 Y Gain GYS GYBW ― (Note 30) 0.7 0.8 0.9 1.0 1.1 1.2 ― ― VRS 14 4.75 ― ― 2005-03-14 TA1275BFNG Test Conditions (Unless otherwise specified, VCC = 5 V (Pins 2 & 15), Ta = 25°C) Note Item Test Condition (1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect Pin 20 to GND through 27 kΩ. 1 Bell / Filter f0 (3) : Keep Pin 24 GND. (4) : Measure the frequency at which the Pin 7 output is the greatest, that is, "f0BEL". (5) : Calculate : "f0B-C" = f0BEL−4,286 kHz. (1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect pin 20 to GND through 27 kΩ. 2 Bell / Filter f0 Variable Range (3) : Measure the frequency at which the Pin 7 output is the greatest when VCC is 5.5 V / 4.5 V, that is, f0BEL5.5 / f0BEL4.5. (4) : Calculate : "f0B-H" = f0BELH−4,286 kHz. "f0B-L" = f0BELL−4,286 kHz. (1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect Pin 20 to GND through 27 kΩ. 3 Bell / Filter Q (3) : Pin 24 is GND. (4) : Observe the frequency response of the Pin 7 output. (5) : Calculate : "QBEL" = (MAX−3dB Band Width) / f0BEL. (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 4 Color Difference Output Amplitude 5 Color Difference Relative Amplitude (2) : Measure the R-Y output amplitude at Pin 9, that is, "VRS". (3) : Measure the B-Y output amplitude at Pin 11, that is, "VBS". Calculate : "R / B-S" = VRS / VBS. (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. (2) : Measure the amplitude between Black and Cyan / Red, that is, VCyan / VRed. 6 Linearity (3) : Measure the amplitude between Black and Yellow / Blue, that is, VYellow / VBlue. (4) : Calculate : "LinR" = VCyan / VRed "LinB" = VYellow / VBlue (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 7 Rising Time (2) : Measure the rising time (from 10% to 90%) between Green and Magenta at Pin 9 / Pin 11, that is, "trR" / "trB". 8 Demodulation Hold Range (1) : Input a 200 mVp-p, 2 MHz sine wave into Pin 20. 9 Demodulation Capture Range (2) : Increasing the input frequency, measure the frequencies at which demodulated output appears at Pin 9, that is, "CRL", and at which demodulated output disappears at Pin 11, that is, "HBH". (3) : Input a 200 mVp-p, 7 MHz sine wave into Pin 20. (4) : Decreasing the input frequency, measure the frequencies at which demodulated output appears at Pin 11, that is, "CBH", and at which demodulated output disappears at Pin 9, that is, "HRL". 15 2005-03-14 TA1275BFNG Note Item Test Condition (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 10 Killer ON/OFF Level (2) : Decreasing the input amplitude, measure the amplitude at which demodulated outputs disappear at Pin 9 and Pin 11, that is, "eSK". (3) : Increasing the input amplitude from 0 mVp-p, measure the amplitude at which demodulated outputs appear at Pin 9 and Pin 11, that is, "eSC". (1) : Input a 200 mVp-p non-modulated chrome signal into Pin 20. 11 Black Level Offset (2) : Pin 10 and Pin 12 are opened. (3) : Measure the difference between picture period and blanking period at Pin 9 / Pin 11, that is, "ErR" / "ErB". (1) : Connect the external power supply to Pin 13, as shown in the figure. (2) : Apply 4.0 V to Pin 13, and measure the Pin 6 voltage, that is, “V6color”. (3) : Apply 2.0 V to Pin 13, and measure the Pin 6 voltage, that is, “V6B / W”. 6 12 ID Voltage Voltmeter V + (1) : Connect the external power supply to Pin 13, as shown in the figure. (2) : Apply 5.0 V to Pin 13, and measure the Pin 6 current, that is, “I6strongSE”. (3) : Apply 4.0 V to Pin 13, and measure the Pin 6 current, that is, “I6SE”. (4) : Apply 2.0 V to Pin 13, and measure the Pin 6 current, that is, “I6B / W”. TA1275 BFNG 13 ID Current 4 0.01µF 6 15kΩ A Ammeter + 56 TB1309FG (1) : Input a 200 mVp-p, 15 kHz sine wave into Pin 14 and Pin 16. (2) : No input on Pin 20. 14 System SW Threshold Level (3) : Increasing the Pin 6 voltage from 0 V, measure the voltage at which the 15 kHz sine wave appears at Pin 9 and Pin 11, that is, "V6PIN". (4) : Decreasing the Pin 6 voltage from 4 V, measure the voltage at which the 15 kHz sine wave disappears at Pin 9 and Pin 11, that is, "V6S". (1) : No input on Pin 20. 15 Color Difference Output DC Level (2) : Measure the DC voltage on Pin 9 / Pin 11 when Pin 6 is 4 V, that is, "V9PIN" / "V11PIN". (3) : Measure the DC voltage on Pin 9 / Pin 11 when Pin 6 is 0 V, that is, "V9S" / "V11S". (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. (2) : Measure the difference between the picture period and the blanking period at Pin 9 when Pin 10 is 5 V / 0 V, that is, ErR+ / ErR−. 16 R-Y B-Y Black Level Control Characteristics (3) : Measure the difference between the picture period and the blanking period at Pin 11 when Pin 12 is 5 V / 0 V, that is, ErB+ / ErB−. (4) : Calculate : "∆ErR+" = ErR+−ErR "∆ErR−" = ErR−−ErR "∆ErB+" = ErB+−ErB "∆ErB−" = ErB−−ErB 16 2005-03-14 TA1275BFNG Note Item Test Condition (1) : Input a 200 mVp-p, 15 kHz sine wave into Pin 14 and Pin 16. (2) : Supply 4 V to Pin 6. 17 Ext. Color Difference Gain (3) : Measure the respective output amplitudes at Pin 9 and Pin 11: VEXTR and VEXTB. (4) : Calculate : "GEXTR" = VEXTR / 200 mV "GEXTB" = VEXTB / 200 mV (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 18 Gate Pulse Width Variable Range (2) : Connecting Pin 13 to GND via 1 kΩ, observe the gate pulse at Pin 13. (3) : Measure the respective gate pulse widths for when Pin 4 is opened and for when it is connected to VCC / GND: "WGP", "WGPVCC" and "WGPGND". (1) : Connect Pin 13 to VCC via 10 kΩ. 19 Y DL Characteristics (2) : Connect Pin 8 to GND. (3) : Measure the delay time between Pin 23 input and Pin 7 output, that is, "tYDL". (1) : Input a sweep signal with sync. (1 Vp-p). (2) : Connect Pin 13 to VCC via 10 kΩ. (3) : Connect Pin 8 to VCC. 20 Y Trap Characteristics (4) : Observing the frequency response at Pin 7, measure the frequency at which the attenuation is maximum, that is, "f0Y5.5"; and measure the attenuation at f0Y5.5 against that at 1 MHz, that is, "GY5.5". (1) : Connect Pin 13 to VCC via 10 kΩ. 21 Y Input Dynamic Range (2) : Increasing the amplitude of the Y signal input into Pin 23, measure the amplitude at which the output signal from Pin 7 begins to be distorted, that is, "DRYS". (3) : Open Pin 13. (4) : Repeat (2), that is, "DRYBW ". (1) : Input a Y signal (picture period amplitude: 0.7 Vp-p) into Pin 23. (2) : Connect Pin 13 to VCC via 10 kΩ. 22 Y Gain (3) : Measure the gain between Pin 23 input and Pin 7 output, that is, "GYS". (4) : Open Pin 13. (5) : Repeat (3), that is, "GYBW ". 17 2005-03-14 TA1275BFNG Test Circuit C13:0.033µF P13 Vcc 5V(Y/C) P/N B-Y IN 12 14 P/N R-Y IN B-Y OUT 11 13 ID FILTER B-Y BLACK CONT P12 SW12 R12:50k P10 SW10 R10:50k B R13:1k 15 SW13 16 A R13a:10k R-Y in C14:0.33µF R-Y BLACK CONT 10 R-Y OUT 9 C15:0.01µ B-Y out P14 R14:75 + B-Y in C15:0.33µF R-Y out C15A:33µ P15 R16:75 A Y out B P6 R6:15k P5 A H/H+V ID SW P5A SW5 C4:0.01µF BELL f0 FILTER N.C. P23 C2a:33µ Y IN Vcc 5V (Pulse) C2:0.01µ P24 SCP in 1 BELL CONT B SW24 24 A P1 SCP in Jumper 2 + 23 + C23A:1µ R24:20k P4A 3 + R23:75 Y in 22 Jumper C22:1µ SW4 B C in R4:33k P22 A 4 4.43CW-IN GATE WIDTH CW in P4 R20A:75 SW6a N.C. 8 C IN S-LOW PASS SW P20 C20:0.01µ SYSTEM I/O SW B R20:27k SW20 7 20 + Y OUT BELL MON P8A SW8 6 19 f0 FILTER P19 C19:1µF DL MODE SW 5 18 GND TA1275BFNG (SSOP24) 17 N.C. 21 P8 C25:100µ + Vcc(5V) C26:0.01µ 18 2005-03-14 TA1275BFNG 16 P/N B-Y IN 17 N.C. 18 GND 19 f0 FILTER 20 C IN S-LOW PASS SW N.C. BELL f0 FILTER B-Y out 15 Vcc 5V(Y/C) B-Y OUT 12 14 P/N R-Y IN B-Y BLACK CONT 11 13 ID FILTER 21 0.033µF 22 Application Circuit R-Y BLACK CONT 10 0.01µF + 1µF + 9 Y out 6 H/H+V ID SW 0.01µF 4.43CW-IN GATE WIDTH N.C. CW / System I/O in 7 SYSTEM I/O SW 5 8 Y OUT BELL MON 4 0.01µF DL MODE SW 3 + TA1275BFNG (SSOP24) 1µF R-Y OUT R-Y out 33µF 33µF Y IN Vcc 5V (Pulse) 2 23 + + 1µF SCP in SCP in BELL CONT 1 24 0.01µF 100µF + Vcc(5V) 0.01µF The application circuits shown in this document are examples provided for reference purposes only. Thorough evaluation is required in the mass production design phase. By furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property rights. 19 2005-03-14 TA1275BFNG Outline Drawing SSOP24-P-300-0.65A Unit: mm Weight: 0.09 g (typ.) 20 2005-03-14 TA1275BFNG 21 2005-03-14