參數(shù)資料
型號(hào)： KA22292Q
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(jí)（重放/錄音立體聲均衡放大器）
文件頁(yè)數(shù)： 7/13頁(yè)
文件大?。?/td> 194K
代理商： KA22292Q
PB/REC EQ ST PRE AMP
KA22292/Q
2. RECORD EQUALIZER SETTING
This device has a frequency compensator, record equalizer circuit for boost, cut and a peak frequency that is used
for tape recording.
Low and mid (about 30-3 kHz) frequency is fixed by the external capacitor CL, and the gain is adjusted by two
resistors that connect the RGM and RGL pins to the ground.
Internal part R
M3
and external C
L
are fixed and R
GM
is adjustable by means of the external. Hence, gain of mid and
low frequency are controlled.
High frequency peaking function consisting of a 2nd order band pass filter, can adjust the band width, gain and
peak frequency using the external resistor R
GP
, R
FQ
and R
F/Q.
We have shown that R
IREF
is a semi-fixed resistor, which compensates internal capacitors for variations of the fab-
ric process.
22000
R
GM
S
A
HPF
=
S +
R
M3
* C
L
1
A
LPF
=
S +
R
M3
* C
L
1
1
R
M3
* C
L
R
GL
8800
RM3 = 10 K, fp =
2*
π
RM3 * C
L
1
, CL = external constant
Gain
f
A
BPF
=
K
1
G
1
G
F/Q
C
F/Q
C
F/Q
C
F/Q
S
S
2
+
S +K
2
G
F/Q
G
FQ
C
F/Q
C
FQ
ω
O =
C
F/Q
C
FQ
C
F/Q
C
FQ
Q = C
F/G
C
F/Q
C
FQ
C
F/Q
G
PF
= K
1
G
1
G1 =
4.4
R
GP
, G
F/Q
=
1
15K*
2R
IREF
R
F/Q
,G
FQ
=
1
15K*
R
IREF
R
F/Q
,
K
1
= 40e4
K
2
= 1
G
F/Q
= 160pF
,
,
,
,
,
,
,
C
F/Q
= 70pF
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KA22293 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:AUDIO SIGNAL PROCESSOR
KA22293Q 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MONOLITHIC INTEGRATED CIRCUIT FOR MUSIC CENTER
KA22293-Q 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:AUDIO SIGNAL PROCESSOR
KA224 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad OP amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
KA224_Q 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad OP amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
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