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參數(shù)資料
| 型號(hào)： | SA5752DK |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Audio processor - companding, VOX and amplifier section |
| 中文描述： | COMPANDER, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, SOT-266-1, SSOP-20 |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 114K |
| 代理商： | SA5752DK |
Philips Semiconductors
Product specification
SA5752
Audio processor – companding, VOX and amplifier section
2
1997 Nov 07
853-1721 18666
DESCRIPTION
The SA5752 is a high performance low power audio signal
processing system especially designed to meet the requirements for
small size and low voltage operation of hand-held equipment. The
SA5752 subsystem includes a low noise microphone preamplifier
with adustable gain, a noise cancellation switching amplifier with
adjustable threshold, a voice operated transmitter (VOX) switch,
VOX control, an audio compressor with buffered input, audio
expandor, and an internal bandgap voltage regulator with power
down capability. When used with Philips Semiconductors’ SA5753,
the complete audio processing function of an AMPS or TACS
cellular telephone is easily implemented. The system also meets
the requirements of the proposed NAMPS or NTACS specifications.
The SA5752 can also be used without the SA5753 in a wide variety
of radio communications applications.
FEATURES
Operating voltage range: 2V to 5.5V
Miniature SSOP
High performance
Adjustable VOX and noise cancellation threshold
Adjustable gain preamplifier
Audio companding
ESD protected
Open collector VOX output
Logic inputs CMOS compatible
Power down mode
Few external components
Meets AMPS/TACS/NAMPS/NTACS requirements
PIN CONFIGURATION
MIC
IN
RECT
GRES
VOX
OUT
VOX
TR
GND
V
REF
EXP
OUT
HPDN
VOX
CTL
COMP
CAP2
COMP
CAP3
NCAN
OUT
DK PACKAGE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
19
18
17
16
15
PREAMP
GRES
NCAN
CAP
V
CC
EXP
CAP
COMP
IN
COMP
CAP1
COMP
OUT
EXP
IN
SA5752
SR00659
Figure 1. Pin Configuration
BENEFITS
Very compact applications
Long battery life in portable equipment
Complete cellular audio function with the SA5753
APPLICATIONS
Cellular radio
Mobile communications
High performance cordless telephones
2-way radio
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
20-Pin Plastic Shrink Small Outline Package (SSOP)
-40 to +85
°
C
SA5752DK
SOT266-1
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