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參數(shù)資料
| 型號： | MSM7726-01 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Baseband LSI For PHS(用于PHS的ADPCM編碼譯碼器) |
| 中文描述： | 基帶LSI為小靈通（用于小靈通的差分PcM編碼譯碼器） |
| 文件頁數(shù)： | 1/97頁 |
| 文件大?。?/td> | 449K |
| 代理商： | MSM7726-01 |
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MSM7726-01
1
Semiconductor
MSM7726-01
Baseband LSI For PHS
GENERAL DESCRIPTION
The MSM7726 integrates an ADPCM CODEC,
p
/4 shift QPSK modulator/demodulator, and
TDMA-TDD functions, necessary for PHS (Personal Handy Phone Systems), into a single LSI
chip. The MSM7726 can be used in base stations and handsets having a maximum of 2 slots.
FEATURES
(ADPCM CODEC Unit)
ADPCM algorithm: ITU-T Recommendations G.726 (32 kbps)
Built-in DTMF tone and other various tone generators
Built-in interface for voice recording and playback
(
p
/4 Shift QPSK Modem Unit)
I and Q output with DC offset and adjustable gain
Full digital
p
/4 shift QPSK demodulation system
Input IF frequency selectable: 1.2 or 10.8 MHz
(TDMA-TDD Unit)
Compatible with a maximum of 2 slots (base station, handsets)
Digital data transmission (32 kbps/ 64 kbps barer transmission) compatible
Built-in ADPCM CODEC unit controller
Built-in
p
/4 QPSK MODEM unit controller
Built-in RF unit controller
Built-in power-down controller
Built-in scrambler circuit
Built-in UW (16 or 32 bits) output/ detector circuit
Built-in CRC output/ detector circuit
Built-in LCCH automatic transmission circuit
Can be set for continuous slots or alternate slots
Built-in carrier sense and RSSI automatic measuring circuits
Built-in FER detector
Built-in RSSI detecting A/D converter
Built-in timers (2 units)
8 types of CPU interrupts (UW detection, CRC error detection, transmission complete,
reception complete, A/D conversion complete, 625
m
s slot, time-outs of timer 0 and timer 1)
(Common Unit)
Can be connected to any CPU (compatible with both an address-data multiplexed bus and
independent address and data buses)
Operates from a single 3 V power supply (V
DD
: 2.7 to 3.6 V)
Low power consumption
During battery saving mode:
Typ.
During a burst transmission or reception:
Typ.
Package
100-pin TQFP (TQFP100-P-1414-K)
50
m
A
12 mA
E2U0056-17-53
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