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參數(shù)資料
| 型號： | tda 6621 |
| 廠商： | SIEMENS AG |
| 英文描述： | TV-Stereocoder(TV 立體聲編碼器) |
| 中文描述： | 電視Stereocoder（電視立體聲編碼器） |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 595K |
| 代理商： | TDA 6621 |
TDA 6621
Semiconductor Group
3
Pin Functions
Pin No.
Symbol
Function
1
I
AF1
AF-input tone 1
2
Bias AF
Bias for AF-operating point
3
I
AF2
AF-input tone 2
4
I
Pilot
Pilottone filter in (inverting input)
5
Q Pilot
Pilottone filter output
6
Q AM
AM modulator pilottone output
7
Q AF1
AF-output tone 1
8
Q AF2
AF-output tone 2
9
V
REF Q
Reference voltage output 6 V DC
10
MOD
Modulation depth adjustment
11
+
V
S
+
V
S
supply voltage
12
I
Dual
Dual control input
13
I
Stereo
Stereo control input
14
I
Freq
Line frequency input
15
Q Tone
Identification tone output (square wave)
16
I
Tone
Identification tone input
17
PLL
Loop filter PLL
18
GND
Ground
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