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參數(shù)資料
| 型號(hào)： | TA2159F |
| 廠商： | Toshiba Corporation |
| 英文描述： | TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic |
| 中文描述： | 東芝雙極線性集成電路硅單片 |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 378K |
| 代理商： | TA2159F |
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TA2159F
2002-10-03
8
PIN
No.
Symbol
Pin Name
Function and Operation
Remarks
UART/3BUS
UART 3BUS
switching
input
When BUS dis Low, inputs 3BUS
selection signal. Because output is High
at sleep mode, input High through pullup
resistor.
3BUS Inputs Low.
UART Inputs High.
12
TEL key
TEL input key
When BUS dis = High, this key is the TEL
input key. Every time this key falls to Low
level, pin 15 (TEL/RADIO) output is set to
Low
High
Low, and soon. When
TEL/RADIO = Low, turns off the radio;
when High, turns on the radio.
When not using the TEL key, leave the
pin open. When SLEEP Low, output is
set to Low (pull-up off).
14
Beep
Beep output
Searches for the station when the
UP-SEARCH key is pressed at
no-transmission mode. If a station is not
detected after a whole search or an
automatic preset scan, outputs a beep.
MONO/ST
MONO
/STREO
control output
Directly connected to pin 47 (LPF1) of the
tuner block. Controls output and forced
mono according to the BUS data.
STREO Input mode (open)
MONO Outputs Low.
15
TEL/RADIO
TEL/RADIO
status output
When BUS dis H, switches output from
Low to High every pin 12 (TEL key) input.
Radio Outputs High.
TEL Outputs Low (radio off).
16
MUTE
Muting output
mode
Output mode, normally used for muting
control signal output.
The signal is used as IF count ON/OFF
signal in tuner block and MUTE signal.
17
TEST2
Test mode
control input
Input pin used for controlling TEST mode.
“H” (high) level indicates TEST mode,
while “L” (low) indicates normal operation.
Since a pull-down resistor is built into the
pin, at normal operation, leave the pin
open or set it to Low.
16
V
DD
R
IN2
17
V
DD
15
14
12
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