TA1201CNG Datasheet, PDF (23/46 Pages) Toshiba Semiconductor – I2C BUS CONTROL NTSC 1CHIP COLOR TV IC

NOTE
ITEM
10 920kHz Beat
BUS MODE
(06) (07) (08) (0A)
(00) (20) (20) ―
11 IF AGC Range
12 IF AGC Voltage
↑↑↑↑
↑↑↑↑
13 RF AGC Voltage
↑ ↑ Ad- ↑
just
TA1201CNG
TEST CONDITION (V_CC = 9V, Ta = 25±3°C)
MEASUREMENT METHOD
(1) Apply the signals as follows to IF input,
f₀ = 45.75MHz 31.6mV_rms
f_c = 42.17MHz 10.0mV_rms
f_S = 41.25MHz 10.0mV_rms
(2) Apply the voltage so that the lowest of the output at pin 47 is equal V_sync.
(3) Measure the difference between f_c and 920kHz beat.
RW_AGC = V_INMAX−V_INMIN
(1) Same as Note 3 (1)
(2) Measure the voltage at pin 5. (V_5MEAN)
(3) Measure the voltage at pin 5 when no input. (V_5MAX)
(4) Measure the voltage at pin 5 when input signal level is 178mV_rms (V_5MIN).
(1) Same as Note 3 (1)
(2) Adjust the data of sub-address (08) (RF AGC) so that the voltage at pin 3
become 4.5V.
(3) Measure the voltage at pin 3 when no input. (V_3MAX)
(4) Measure the voltage at pin 3 when input signal level is 178mV_rms (V3_MIN).
23
2004-05-24