SA2011
MIC AMP IC
DESCRIPTION
SA2011 is suitable for audio MIC amplifier of portable cassette tape
recorder and karaoke.
FEATURES
* Built in ALC DET Circuit.
* Built in NFB resistance. (Voltage gain is fixed)
Gv = 47dB ( Typ.) : f=1kHz, ALC OFF
* ALC Level: Vout(ALC) = 0.6Vrms(Typ.)
* ALC Range:
R
ALC
= 58dB(Typ.)
* Operating Supply Voltage Range: V
CC
=4V~14V
APPLICATIONS
* Cassette tape recorder, karaoke, etc…
ORDERING INFORMATION
Device
SA2011
Package
SIP8-7
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATING
(T
amb
=25°C)
Characteristics
Maximum Supply Voltage
Allowable Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
CC
max
P
d
max
T
opr
T
stg
Rating
14
900
–25 ~ +75
–55 ~+150
Unit
V
mW
°C
°C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.3
2006.05.22
Page 1 of 4
SA2011
ELECTIVAL DHARACTERISTICS
(V
CC
=7V, f
r
=1kHz, R
L
=10kΩ, T
amb=
25°C)
Characteristics
Quiescent Current
Voltage Gain
Maximum Output Voltage
Total Harmonic Distortion
ALC Level
ALC Range
Attack Time
Recovery Time
Ripple Rejection Ratio
Input Resistance
Equivalent Input Noise Voltage
Symbol
I
CCQ
G
v
V
om
THD
--
THD = 1%
V
OUT
= 0.3Vrms
B
W
= 400Hz~30kHz
3dB up
V
IN
=1.41mVrms(-57.0dBV)
→0.014Vrms(-37.0dBV)
V
IN
=0.014Vrms(-37.0dBV)
→0.447mVrms(-67.0dBV)
f=100Hz,V
ripple
= 0.1Vrms
B
W
= 20Hz~20kHz
G
v
= 47dB, R
g
= 2.2kΩ
Test condition
V
IN
=0, ALC ON
Min.
--
45.5
1.0
--
0.7
40
--
--
-30
--
--
Typ.
5.0
47
1.3
0.2
0.8
58
0.05
2
-46
20
1.4
Max.
8.0
48.5
--
0.5
0.9
--
--
--
--
--
3.0
Unit
mA
dB
Vrms
%
Vrms
dB
s
s
dB
kΩ
V
V
ou
t(ALC) V
IN
= 0.0178Vrms(-35dBv)
R
ALC
T
ATK
T
RCV
R.R.
R
IN
V
ni
PIN CONFIGURATION
Note:
When the seal is looked in positive direction, the left pin on the bottom is the first pin (Pin 1).
PIN DESCRIPTIONS
Pin no.
1
2
3
4
5
6
7
Pin name
NC
IN-
IN
GND
OUT
DETOUT
V
CC
No connection.
Feedback port.
Positive input of AMP.
Ground.
Output of AMP.
Output of ALC DET, connected to a 10 F capacitance .
V
CC
.
Description
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.3
2006.05.22
Page 2 of 4
SA2011
FUNCTION DESCRIPTION
1. This IC built-in ALC detect circuit. When input large signal, the ALC become high level, and control the output
amplitude; when input small signal, the ALC is shut down, output gain is fixed.
2. Voltage gain of amplifier is determined by the built-in negative feedback resistance.
TEST CIRCUIT
PACKAGE OUTLINE
SIP8-7
19.2±0.3
Unit: mm
8.00±0.30
6.50±0.25
45°
0.7MAX
0.27±0.07
3.40±0.30
1.20
2.54
0.5
2.80±0.25
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.3
2006.05.22
Page 3 of 4
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