Toshiba TA1218N Manual
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TA1218N/F 2000-09-11 25/40 Pin Voltage Pin No. N F Pin Name Symbol Test Circuit Min Typ. Max Unit 1 43 L out 2 V1 3.7 4.0 4.3 V 2 44 R out 2 V2 3.7 4.0 4.3 V 3 45 Det in V3 6.3 6.6 6.9 V 4 46 Det Select V4 3.4 3.7 4.0 V 5 47 L in TV V5 5.0 5.2 5.4 V 6 48 R in TV V6 5.0 5.2 5.4 V 7 2 V in TV V7 5.0 5.2 5.4 V 8 3 L in V1 V8 5
TA1218N/F 2000-09-11 28/40 AC Characteristics Characteristics Select Mode Symbol Test Circuit Min. Typ. Max. Unit Test Method V in TV VDR7V1 1.5 2.0 V p-p V in V1 VDR10V1 1.5 2.0 V p-p V in V2 VDR28V1 1.5 2.0 V p-p Y/V in S1 VDR12V1 1.5 2.0 V p-p C in S1 VDR14V1 1.5 2.0 V p-p Y/V in S2 VDR16V1 1.5 2.0 V p-
Toshiba TA1218N, TA1218N/F 2000-09-11 1/40 TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA1218N, TA1218F Audio/Video Switching IC for TVs The TA1218N/F is an audio/video switching IC for TV sets. Conforming to I 2 C bus standards, it allows you to perform various switching operations through the bus lines by using a microcomputer. Thanks to its 2-channel outputs, the TA1218N/F can also be used for the PIP systems. Furthermore, since the presence of a signal on its sync signal output pin can be determined by a microcomputer, it is possible to check each input/output channel (self-diagnosis). This IC has the same pin assignments a
Toshiba TA1218N, TA1218N/F 2000-09-11 6/40 Pin No. Name Function Interface 5 (47) L in TV This pin is for input a left audio signal from the main demodulator in the TV set. The signal fed into this pin is presented to L out TV, L out 1, and L out 2. The input dynamic range of this pin is 6.5 V p-p and the input resistance is 70 kΩ. 6 (48) R in TV This pin is for input a right audio signal from the main demodulator in the TV set. The signal fed into this pin is presented to R out TV, R out 1, and R out 2. The input dynamic range of this pin is 6.5 V p-p and the input resistance is 70 kΩ. 7 (2) V in TV This pin is f
Toshiba TA1218N, TA1218N/F 2000-09-11 7/40 Pin No. Name Function Interface 9 (5) R in V1 This pin is for input a right audio signal from an external source (V1 channel). This pin can also be used for PIP signal input. The signal fed into this pin is presented to R out 1 and R out 2. The input dynamic range of this pin is 6.5 V p-p and the input resistance is 70 kΩ. 10 (6) V in V1 This pin is for input a composite video signal from an external source (V1 channel). This pin can also be used for PIP signal input. The signal fed into this pin is presented to V out 1, V out 2, Y out , and C out .
Toshiba TA1218N, TA1218N/F 2000-09-11 22/40 Outline of I 2 C Bus Control Format The TA1218N/F’s bus control format conforms to the Philips I 2 C bus control format. (1) Start and stop conditions (2) Bit transfer (3) Acknowledgement Purchase of TOSHIBA I 2 C components conveys a license under the Philips I 2 C Patent Rights to use these components in an I 2 C system, provided that the system conforms to the I 2 C Standard Specification as defined by Philips. SDA SCL S Start condition P Stop condition SDA from Master SDA from Slave SCL from Master High impedance S 8 1 9 High impedance SDA SCL SDA can be changed SDA must not be changed
Toshiba TA1218N, TA1218N/F 2000-09-11 24/40 Recommended Operating Conditions, ( ): The Terminal Number of TA1218F Characteristics Test Condition Min Typ. Max Unit Remark Supply voltage 33 (33) 8.1 9.0 9.9 V ― Composite signal input amplitude 7, 10, 12, 16, 28 (2, 6, 8, 12, 26) 1.0 V p-p 100IRE Y input amplitude 12, 16 (8, 8) 1.0 V p-p 100IRE Comb Y input amplitude 30 (32) 2.0 V p-p Chroma input amplitude 14, 18 (10, 15) 286 mV p-p Burst Comb chroma input amplitude 32 (30) 572 mV p-p Burst Audio input amplitude 5, 6, 8, 9,
Toshiba TA1218N, TA1218N/F 2000-09-11 12/40 Pin No. Name Function Interface 30 (28) Y in This pin is for input a luminance signal from an external comb filter. The signal fed into this pin is presented to Y out . The input dynamic range of this pin is 5.5 V p-p and the input resistance is 60 kΩ. 31 (29) R in V2 This pin is for input a right audio signal from an external source (V2 channel). This pin can also be used for PIP signal input. The signal fed into this pin is presented to R out 1 and R out 2. The input dynamic r
Toshiba TA1218N, TA1218N/F 2000-09-11 3/40 Pin Assignment TA1218N L ou t 2 R out 2 Det in Det Select L in TV R in TV V in TV L in V1 R in V1 V in V1 L in S1 Y/V in S1 R in S1 C in S1 L in S2 Y/V in S2 R in S2 C in S2 I/O1 I/O2 I/O3 V out 2 O5 L out TV R out TV V out 1 L out 1 Y out R out 1 C out V CC C in R in V2 Y in L in V2 V in V2 Address Sync out SDA SCL GND O4 4 1 2 3 5 9 6 7 8 10 14 11 12 13 15 20 17 18 19 21 16 39 42 41 40 38 34 37 36 35 33 29 32 31 30 28 23 26 25 24 22 27 11 TA1218N
Toshiba TA1218N, TA1218N/F 2000-09-11 18/40 Y Output Select: Terminal 30 (32) Output Signal Bus Data Mode Y Output Signal Y Output Switching Input Through Y out Main V Select Mode (see table 2-2.) B01 Y in Y in 0 V through Y/V in S1 V or FV 1 S1 Y through Y/V in S1 S1 S * Y in Y in 0 V through Y/V in S2 V or FV 1 S2 Y through Y/V in S2 S2 S * Y in Y in 0 V1 V through V in V1 V1 V 1 Y in Y in 0 V2 V through V in V2 V2 V 1 Y in Y in 0 TV V through V in TV TV V 1 C Output Select: Terminal 34 (34) Output Signal Bus Data Mode Y Output Signal C Output Switching Input Through C out Main V Sele
Toshiba TA1218N, TA1218N/F 2000-09-11 27/40 Characteristics Measured Pin Symbol Test Circuit Min. Typ. Max. Unit Remark I/O1 VthI1L 1.75 2.25 2.75 V Mid-Low threshold level of I/O1 input (pin 19 (16)). I/O1 VthI1M 6.5 7.0 7.5 V Hig-Mid threshold level of I/O1 input (pin 19 (16)). I/O2 VthI2L 1.75 2.25 2.75 V Mid-Low threshold level of I/O2 input (pin 20 (17)). I/O2 VthI2M 6.5 7.0 7.5 V Hig-Mid threshold level of I/O2 input (pin 20 (17)). ADC input discrimination voltage I/O3 VthI3 1.75 2.25 2.75 V Hig-Low threshold lev
TA1218N/F 2000-09-11 8/40 Pin No. Name Function Interface 13 (9) R in S1 This pin is for input a right audio signal from an external source (S1 channel). The signal fed into this pin is presented to R out 1 and R out 2. The input dynamic range of this pin is 6.5 V p-p and the input resistance is 70 kΩ. 14 (10) C in S1 This pin is for input a chroma si
Toshiba TA1218N, TA1218N/F 2000-09-11 14/40 Pin No. Name Function Interface 39 (39) R out TV This pin is for output only the signal that is forwarded from R in TV. The output resistance of this pin is 45 Ω. This output can be muted in combination with L out TV by bus control. 40 (40) L out TV This pin is for output only the signal that is forwarded from L in TV. The output resistance of this pin is 45 Ω. This output can be muted in combination with R out TV by bus control. 41 (41) O5 This is a 1 bit DAC output pin. This is an open-collector output. Make sure that the current flowing into this pin is 2.0 mA or less. 42 (42) V out 2 This pin is for o
Toshiba TA1218N, TA1218N/F 2000-09-11 37/40 Characteristics Select Mode Symbol Test Circuit Min. Typ. Max. Unit Test Method R in TV CT6RTV 70 100 dB R in V1 CT9RTV 70 100 dB R in V2 CT31RTV 70 100 dB R in S1 CT13RTV 70 100 dB R out TV Crosstalk R in S2 CT17RTV 70 100 dB (1) Apply a 1 kHz, 1.0 V p-p sine wave to each input pin. (2) Compare the output amplitude when R in TV is selected with leakage components from nonselected pins R out TV Mute attenuation R in TV M6RTV 70 100 dB While applying a 1 kHz, 1.0 V p-p sine wave to pin 6 (48), compare the output amplitudes on pin 39 (39) when mute is turned on and turned o
Toshiba TA1218N, TA1218N/F 2000-09-11 32/40 Characteristics Select Mode Symbol Test Circuit Min. Typ. Max. Unit Test Method L in TV VDR5L1 6.0 6.5 V p-p L in V1 VDR8L1 6.0 6.5 V p-p L in V2 VDR29L1 6.0 6.5 V p-p L in S1 VDR11L1 6.0 6.5 V p-p L out 1 Input dynamic range L in S2 VDR15L1 6.0 6.5 V p-p (1) Apply a 1 kHz sine wave to each input pin. (2) In each select mode, measure an input amplitude at which the output waveform on pin 37 (37) begins to be distorted. L in TV G5L1 −0.5 0 0.5 dB L in V1 G8L1 −0.5 0 0.5 dB L in V2 G29L1
Toshiba TA1218N, TA1218N/F 2000-09-11 38/40 Application Circuit Note8: ( ): The terminal of TA1218F. 4 1 2 3 5 9 6 7 8 10 14 11 12 13 15 20 17 18 19 21 16 39 42 41 40 38 34 37 36 35 33 29 32 31 30 28 23 26 25 24 22 27 V CC = 9 V 0.01 µF 2.2 µF 4.7 kΩ (43) (44) (45) (46) (47) (48) (2) (3) (5) (6) (7) (8) (9) (10) (11) (12) (13) (15) (16) (17) (18) (42) (41) (40) (39) (38) (37) (36) (35) (34) (33) (30) (29) (28) (27) (26) (25) (24) (23) (22) (21) (19) 2.2 µF 47 µF 2.2 µF 2.2 µF 47 µF 2.2 µF 47 µF 2.2 µF 2.2 µF 47 µF 0.01 µF 2.2 µF 2.2 µF 47 µF 47 µF 2.2 µF To
Toshiba TA1218N, TA1218N/F 2000-09-11 30/40 Characteristics Select Mode Symbol Test Circuit Min. Typ. Max. Unit Test Method V in TV F7Y 10 MHz V in V1 F10Y 10 MHz V in V2 F28Y 10 MHz Y/V in S1 F12Y 10 MHz Y/V in S2 F16Y 10 MHz Y out Frequency response Y in F30Y 10 MHz (1) Apply a 1.0 V p-p sine wave to each input pin. (2) In each select mode, measure a frequency at which the output amplitude on pin 36 (36) is 3dB down from the 15 kHz applied level. V in TV CT7Y 55 60 dB V in V1 CT10Y 55 60 dB V in V2 CT28Y 55 60 dB Y/V in S1 CT12Y 55 60 dB Y/V in S
Toshiba TA1218N, TA1218N/F 2000-09-11 15/40 Bus Data Specifications Data Structure (1) Write S Slave address (90H or 92H) W (0) A Data 1 A Data 2 A Data 3 A P (2) Read S Slave address (91H or 93H) R (1) A Data 4 A P Note2: Slave address is switched by the voltage applied to pin 27 (address). Switched to 90H when low (GND); switched to 92H when high (V CC ) during write mode. Contents of Data Mode Data No. Contents of Data B07 B06 B05 B04 B03 B02 B01 B00 Audio mute YC output switching Data 1 [F0H] L out TV R out TV L out 2 R out 2 R out 1 L out 1 Forced TV Audio Y out C out B17 B16 B15 B14 B
Toshiba TA1218N, TA1218N/F 2000-09-11 17/40 Sub (PIP) Video Select: Terminal 42 (42) Output Signal Bus Data Mode Output Signal S Input Discrimination Input Select (sub) INPUT S/V V out2 B22 B21 B20 V Y/V in S1 Low S Y/V in S1 + C in S1 0 S1 FV Y/VinS1 Open * 0 0 1 V Y/V in S2 Low S Y/V in S2 + C in S2 0 S2 FV Y/V in S2 * Open 0 1 1 V1 V V in 1 * * 1 1 1 V2 V V in 2 * * 1 1 0 TV V V in TV * * 1 1 1 Do not use [100] for the input select data. Sub L/R Select: Terminal 37 and 35 (37 and 35) Output Signal Bus Data Mode SUB L/R Output Signal Forced TV Voice Input Se
TA1218N/F 2000-09-11 35/40 Characteristics Select Mode Symbol Test Circuit Min. Typ. Max. Unit Test Method R in TV VDR6R2 6.0 6.5 V p-p R in V1 VDR9R2 6.0 6.5 V p-p R in V2 VDR31R2 6.0 6.5 V p-p R in S1 VDR13R2 6.0 6.5 V p-p R out 2 Input dynamic range R in S2 VDR17R2 6.0 6.5 V p-p (1) Apply a 1 kHz sine wave to ea
Toshiba TA1218N, TA1218N/F 2000-09-11 2/40 Block Diagram Note1: ( ): The terminal number of TA1218F. (6) Det Select Det in V in V1 V in V2 V in TV Y/V in S1 Y/V in S2 C in S1 C in S2 Sync out L in S1 L in S2 L in V1 L in V2 L in TV R in S1 R in S2 R in V1 R in V2 R in TV V CC GND V CC GND V out 1 V out 2 Y out Y in C out C in SCL SDA Address I/O1 (3 level) I/O2 (3 level) I/O3 O4 O5 L out TV L out 1 L out 2 R out TV R out 1 R out 2 4 3 33 23 −6dB 10 28 7 12 16 S S 18 24 25 27 19 20 21 22 41 + + 14 11 15 8 29 5 26 Pulse conver- ter
Toshiba TA1218N, TA1218N/F 2000-09-11 11/40 Pin No. Name Function Interface 26 (24) Sync out This pin is for output a self-diagnostic sync signal. The signal separated from V in TV V in V1, V in V2, Y/V in S1, V out 1, V out 2, Y out , or C out is outputted from this pin. In addition, the signal derived from L out 1, R out 1, L out 2, or R out 2 is also output from this pin for use in audio block diagnosis. This is an open-collector output. Make sure that the current flowing into this pin is 2.0 mA or less. 27 (2
Toshiba TA1218N, TA1218N/F 2000-09-11 13/40 Pin No. Name Function Interface 35 (35) R out 1 This pin is for output the main channel right audio signal. The signal fed into R in V1, R in V2, R in S1, R in S2, or R in TV is outputted from this pin. The output resistance of this pin is 45 Ω. Furthermore, the signal outputted from this pin is pulse-converted for use in self-diagnosis. The converted signal is outputted from Sync Out. This outputted can be muted independently of L out 1 by bus control. 36 (36) Y out This pin is for output a luminance signal. The signal
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