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MSM7586-01 Datasheet

  • MSM7586-01

  • pie/4 Shift QPSK MODEM/ADPCM CODEC

  • 42頁(yè)

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E2U0034-28-82
隆 Semiconductor
MSM7586-01/03
隆 Semiconductor
p/4
Shift QPSK MODEM/ADPCM CODEC
This version: Aug. 1998
MSM7586-01/03
Previous version: Nov. 1996
GENERAL DESCRIPTION
The MSM7586 is a CMOS IC developed for use with digital cordless telephones. The device
provides a
p/4
shift QPSK modem function and a CODEC function which performs transcoding
between the voice band analog signal and 32 kbps ADPCM data.
The MSM7586 performs DTMF tone and several types of tone generation, transmit/receive data,
mute and gain control, side-tone pass and its gain control, and VOX function.
FEATURES
(p/4 Shift QPSK Modem Unit)
鈥?384 kbps transmission speed
鈥?Built-in root Nyquist digital filter for the baseband band limiter
鈥?Built-in D/A converters for the analog outputs of the quadrature signal component I and Q
鈥?The DC offset and gain can be adjusted with respect to the differential I and Q analog outputs
鈥?Completely digitized
p/4
shift QPSK demodulator system
(ADPCM CODEC Unit)
鈥?ADPCM system: built-in ITU-T Recommendations G.726 (32kbps, 24 kbps, 16 kbps)
鈥?Transmit/receive full-duplex capability
鈥?PCM interface code format: selectable between
m-law
and A-law
鈥?Serial ADPCM and PCM transmission rate: 64 kbps to 2,048 kbps
鈥?Transmit/receive mute function; transmit/receive programmable gain setting
鈥?Side tone generator (8-step level adjustment)
鈥?Built-in DTMF tone, ringing tone, and various ringing tone generators
鈥?Built-in VOX function
(Common Unit)
鈥?Operate with a single 3 V power supply (V
DD
: 2.7 V to 3.6 V)
鈥?Low power consumption
When entire system is operating: 20 mA Typ.
When powered down:
0.02 mA Typ.
鈥?Package:
100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name: MSM7586-01TS-K)
(Product name: MSM7586-03TS-K)
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