參數(shù)資料
型號： TA2022AFNG
廠商： Toshiba Corporation
英文描述： 1.5V AM/FM IF + MPX
中文描述： 1.5V的調(diào)幅/調(diào)頻中頻盈豐
文件頁數(shù)： 4/18頁
文件大?。?/td> 1679K
代理商： TA2022AFNG
TA2022AFNG
2006-04-11
4
Terminal
Terminal
Voltage (V)
AM
No.
Name
Function
Internal Circuit
FM
8
AGC
AM mode
AGC time constant is
determined by external
capacitor.
FM mode
The sudden change of stop
pulse sensitivity is held in by
external capacitor.
―
―
9
GND
―
―
0
0
10
IF OUT
Output of IF count signal
In case of IF request mode, IF
count signal for IF counter is
taken from this terminal.
FM: V
IF (FM)
= 80mV
p
p
(typ.)
AM: V
IF (AM)
= 100mV
p
p
(typ.)
―
―
11
IF REQ
IF request switch
V
CC
: Receive mode
Open: IF request mode
FM stop pulse sensitivity can
be changed by connecting
R
SEN
in IF request mode.
R
SEN
should be smaller than
100k
―
―
12
SP OUT
Output of stop pulse
VCO frequency can be
monitored, in case that this
terminal is connected with
GND through a resistor
(R
VCO
≒
100k
).
ON : VCO monitor
OPEN : SP OUT
―
―
13
ST IND
Stereo indicator terminal
This terminal shared with
output of modulated AM IF
signal.
AM IF output: 6mV
rms
(R
IF
= 3k
, typ.)
R
IF
should be smaller than
3k
. In case that R
> 3k
,
internal biasing circuit doesn't
operate normally in AM mode.
―
―
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