參數(shù)資料
型號: TA1201CNG
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP56
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-56
文件頁數(shù): 17/46頁
文件大?。?/td> 795K
代理商: TA1201CNG
TA1201CNG
2004-05-24
24
TEST CONDITION (VCC = 9V, Ta = 25±3°C)
BUS MODE
NOTE
ITEM
(06)
(07)
(08)
(0A)
MEASUREMENT METHOD
14
RF AGC Control Range
(00)
(20)
Ad-
just
(1) Same as Note 3 (1)
(2) Set the data of sub-address (08) to (00). Decrease the IF input level. Measure
the IF input level, when the voltage of pin 3 become 4.5V. (VRFMIN)
(3) Set the data of sub-address (08) to (3F). Measure the IF input level, when the
voltage of pin 3 become 4.5V. (VRFMAX)
VRFAGC = VRFMINVRFMAX
15
AFT Center Voltage
(20)
(1) No IF input
(2) Apply 3.0V to pin 5.
(3) Measure the voltage at pin 44. (V4CENT)
16
AFT Voltage
(1) Apply the signal (f = 44.75MHz, 30% AM Video, 31.6mVrms) to IF input.
(2) Measure the output signal level at pin 44. (V4MAX)
(3) Apply the signal (f = 46.75MHz, 30% AM Video, 31.6mVrms) to IF input.
(4) Measure the output signal level at pin 4. (V4MIN)
17
AFT Sensitivity
(1) Same as Note 3 (1)
(2) Measure the voltage change at pin 44 when input frequency is changed. (f /
V)
18
AFT Output Resistance
Measure the output impedance of pin 44.
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