TA1310ANG Datasheet, PDF (94/106 Pages) Toshiba Semiconductor – NTSC VIDEO, CHROMA, DEFLECTION, AND DISTORTION COMPENSATION IC (WITH YUV INTERFACE AND ACB)

TA1310ANG
NOTE
ITEM
G₁₈
E-W Amp Maximum Output
Current
SW MODE
SW₂₈
TEST CONDITIONS (DEF V_CC = 9 V, Ta = 25 ± 3°C, BUS DATA = POWER-ON RESET)
MEASUREMENT METHOD
Connect an ammeter between #23 and GND.
A
Measure the current.
G₁₉ AGC Operating Current 1
G₂₀ AGC Operating Current 2
Measure the TP26 waveform peak value. (V_AGC0)
A
Set the subaddress (06) D₀ to (1) and repeat the measurement. (V_AGC1)
I_AGC0 = V_X ÷ 200 (µA)
(I_AGC1)
A
G₂₁ Vertical Guard Voltage
G₂₂ E / W Output Self-Diagnosis
G₂₃ V-Out Output Self-Diagnosis
G₂₄ Vertical Blanking Check
G₂₅ V Centering DAC Output
G₂₆ V NFB Pin Input Current
A
Set #25 to open. Connect an external power supply to #25. Decrease the voltage from 5 V. When full blanking is applied to #13, measure
the voltage.
Connect a 5-V external power supply to #23. Read D₂ in bus read mode. (V_BUS EW_OFF)
A
When the external power supply connected to #23 is disconnected, read D₂ in bus read mode.
Ensure that an E / W waveform is output from #22. (V_BUS EW_ON)
Connect a 9-V external power supply to #24. Read D₃ in bus read mode. (V_BUS V_OFF)
A
When the external power supply connected to #24 is disconnected, read D₃ in bus read mode.
Ensure that a V-out waveform is output from #25. (V_BUS V_ON)
1) Set the subaddress (0C) data to (81).
A
2) When the subaddress (11) D₄~D₀ are changed from 0000 to 1111, check that the #13 blanking stop phase begins. (V_BLK1)
3) When the subaddress (12) D₄~D₀ are changed from 0000 to 1111, check that the #13 blanking start phase begins. (V_BLK2)
1) Set the subaddress (13) data to (00) and measure the #21 voltage V_21L.
A
2) Set the subaddress (13) data to (80) and measure the #21 voltage V_21M.
3) Set the subaddress (13) data to (FE) and measure the #21 voltage V_21H.
Connect a 9-V V_CC via a 100-kΩ resistor to #25. Measure the sink current on #25
A
according to the voltage difference of the 100-kΩ resistance.
I₂₅ = V / 100 kΩ
94
2005-09-20