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MM1102 Datasheet

  • MM1102

  • Monolithic IC

  • 267.70KB

  • 10頁

  • MITSUMI   MITSUMI

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MITSUMI
Compander IC MM1102
Compander IC
Monolithic IC MM1102
This IC was developed for use in cordless telephones. It is a compander IC incorporating
compressor/expander circuits for a significant noise reduction effect without complicated external circuitry.
On the transmission side, the dynamic range of audio signals is compressed by the compressor circuit; on the
receiving side, the expander expands the signals. As a result the dynamic range over the transmission
channel is reduced logarithmically by one-half.
Features
1. Can be driven at low voltages (down to 2.4V)
2. Internal mute function
3. Internal limiter (IDC) function
4. Two internal op-amps (for splatter filter)
5. Internal standby function
6. Data input, output pins
7. Independent mute circuit
Package
SSOP-24A (MM1102XF)
Applications
1. Cordless telephones
2. Various mobile communication devices
Pin Assignment
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
SSOP-24A
1
2
3
4
5
6
7
8
C.Vref
C.IN
C.IN-
C.RECT
C.RIN
C.FB
C.NF
DATA IN
9
10
11
12
13
14
15
16
C.OUT
BUFIN 1
BUFOUT 1
GND
BUFIN 2
BUFOUT 2
STANDBY SW
C.MUTE SW
17
18
19
20
21
22
23
24
E.MUTE SW
E.OUT
E.RECT
A.OUT
A.IN-
A.IN+
E.Vref
V
CC

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