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參數(shù)資料
| 型號(hào)： | S1A2298A01 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | AM/FM TUNER + MPX |
| 中文描述： | AM / FM調(diào)諧盈豐 |
| 文件頁(yè)數(shù)： | 8/10頁(yè) |
| 文件大?。?/td> | 172K |
| 代理商： | S1A2298A01 |
S1A2298A01
AM/FM TUNER + MPX
8
APPLICATION INFORMATION
1) IF COUNT OUTPUT
IF Count Output is determined by the Pin 8 voltage. Tuning LED swiching Count output occurs at pin 9.
The output impedance is 1.5k
.
V8; High (TU-LED ON) : Output
Low ( TU-LED OFF) : No output
2) IF Switch
IF sensitivity is determined by the resistors of SW1 (0
, 0.51 K
, 10 K
) regulating the AM mixer and FM IF gain.
When SW2 is V
CC
, the count output frequency is 10.7 MHz.
When SW2 is GND, the count output frequency is 1.33375MHz, one eighth of 10.7MHz.
3) AM Low Cut
One of the signals which passed through DET AMP is provided to AF AMP, another is converted to AC before its
feedback to AGC voltage and they are simultaneously used as
a
high frequency bypass.
4) AM OSC BUFFER
Output Impedance is 6.1k
,
SIGNAL WAVE FORM is the rectangle wave, and the voltage scale of the OSC buffer
OUTPUT is 500mVp-p.
5) MPX
INPUT IMPEDANCE: 25k
OUTPUT IMPEDANCE: 5k
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