參數(shù)資料
型號: KA22292
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: PB/REC EQ ST PRE AMP(重放/錄音立體聲均衡放大器)
中文描述: 鉛/承包均衡圣前級(重放/錄音立體聲均衡放大器)
文件頁數(shù): 6/13頁
文件大小: 194K
代理商: KA22292
KA22292/Q
PB/REC EQ ST PRE AMP
APPLICATION INFORMATION
1. FUNCTION SWITCH
— A/B SWITCH : A-DECK MODE = HIGH (5 V)
B-DECK MODE = OPEN (HIGH IMPEDANCE)
*** On record mode, A-DECK is work only
NOTE
: The voltage of pin 27 is forced by a switch controller. If the voltage varies very fast from low to high, or high
to low, then tape output makes a large pop noise.
To avoid this, we recommend slow switching.
— R/P SWITCH : REC MODE = HIGH (5 V)
PLAY MODE = OPEN (HIGH INPEDANCE) OR GND
— Cro2B SWITCH : (B-DECK ONLY)
Cro2B PLAY = GND (0 V)
Cro2B OFF = OPEN (HIGH INPEDANCE ) OR V
CC
— Cro2B SWITCH : (A-DECK ONLY)
Cro2A PLAY = GND (0 V)
Cro2A OFF = OPEN (HIGH INPEDANCE ) OR V
CC
— DUBBING SWITCH : NORMAL SPEED TAPE EQUALIZING = OPEN (HIGH IMPEDANCE) OR V
CC
HIGH SPEED TAPE EQUALIZING = GND (0 V)
— MUTE SWITCH : MUTE ON = HIGH (5 V)
MUTE OFF = OPEN (HIGH IMPEDANCE) OR GND
A-on
B-on
A/B
function
B-off
A-off
2.5V
1.5V
Voltage of pin 27
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