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參數(shù)資料
| 型號(hào)： | DS2722-F-05 |
| 英文描述： | 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet |
| 中文描述： | 900MHz的低IF 1.5Mbps的FSK收發(fā)器最終數(shù)據(jù)表 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 463K |
| 代理商： | DS2722-F-05 |
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ML2722
900MHz
Low-IF 1.5Mbps FSK Transceiver
Final Datasheet
DS2722-F-05
DECEMBER 2003
GENERAL DESCRIPTION
The ML2722 is a fully integrated 1.5Mbps frequency
shift keyed (FSK) transceiver that operates in the
unlicensed 900MHz ISM frequency band. The device
has been optimized for digital cordless telephone
applications and includes all the frequency generation,
receive and transmit functions. Automatically adjusted
filters eliminate mechanical tuning. The transmitter
generates a -1 dBm FSK output signal. The single
conversion Low-IF receiver has all the sensitivity and
selectively
advantages
of
heterodyne without requiring costly, bulky external
filters, while providing the integration advantages of
direct conversion.
a
traditional
super-
The phase locked loop (PLL) synthesizer is completely
integrated, including the voltage controlled oscillator
(VCO), tuning circuits, and VCO resonator. This allows
the ML2722 to be used in frequency hopped spread
spectrum (FHSS) applications.
The ML2722 contains internal voltage regulation. It also
contains PLL and transmitter configuration registers.
The device can be placed in a low power standby mode
for current sensitive applications. It is packaged in a
32TQFP.
PIN CONFIGURATION
VCC5
TRFO
RVCC4
RRFI
GND
GND
GND
GND
1
2
3
4
5
6
7
89
10 11 12 13 14 15 16
32 31 30 29 28 27 26 25
24
23
22
21
20
19
18
17
XCEN
RXON
PAON
EN
DATA
CLK
TPC/TPQ
VSS
R
R
Q
G
V
R
V
G
D
V
D
R
R
R
V
G
ORDERING INFORMATION
PART NUMBER TEMPERATURE RANGE
PACKAGE
PUBLICATION
ML2722DH
-10
o
C to +60
o
C
32 Pin TQFP 7mm body
DS2722-F-05
FEATURES
§
Single chip ISM band 900MHz Radio Transceiver
with -1 dBm transmit output power
§
1.5Mbps maximum data rate
§
Typical receiver sensitivity: -95dBm at 12.5% CER
§
Fully integrated frequency synthesizer with internal
VCO resonator
§
Automatic filter calibration: Requires no mechanical
tuning adjustments during manufacturing
§
Low IF Receiver: No external IF filters required
§
Control outputs correctly sequence and control
external PA
§
3-wire control interface
§
Analog RSSI output
APPLICATIONS
§
900MHz FSK Data Transceivers
-
Digital Cordless Phones
-
Wireless Streaming Media
-
Wireless PC Peripherals
BLOCK DIAGRAM
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