Datasheet > MSM7586-03

MSM7586-03

更新时间： 2024-01-06 07:29:41

品牌	Logo	应用领域
冲电气 - OKI		解码器调制解调器编解码器 PC
页数	文件大小	规格书
42页	281K
描述
pie/4 Shift QPSK MODEM/ADPCM CODEC

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MSM7586-03 技术参数

¡ Semiconductor

MSM7586-01/03

PIN AND FUNCTIONAL DESCRIPTIONS

(Modem Unit)

TXD

Transmit data input for 384 kbps.

TXCI

Transmit clock input.

When the control register CRM0 - B6 is "0", a 384 kHz clock pulse synchronous with TXD should

be input to this pin. This clock pulse should be continuous because this device use APLL to

generate an internal clock pulse.

When CRM0 - B6 is "1", a 3.84 MHz clock pulse should be input to this pin. When the 3.84 MHz

clock pulse is applied to TXCL, TXCO outputs a 384 kHz clock pulse, which is generated by

dividing the TXCL input by 10. The transmit data, synchronous to the 384 kHz clock pulse,

shouldbeinputtotheTXD.InthiscasethedevicesdonotuseAPLL,andthe3.84MHzclockpulse

need not be continuous. (Refer to Fig. 1.)

TXCO

Transmit clock output.

When CRM0 - B6 is "0", TXCO outputs the 384 kHz clock pulse (APLL output) for monitoring

purposes. When CRM0 - B6 is "1", this pin outputs a 384 kHz clock pulse generated by dividing

the TXCI input by 10. (Refer to Fig. 1.)

TXW

Transmit data window signal input.

The transmit timing signal for the burst data is input to this pin. If TXW is "1", the modulation

data is output. (Refer to Fig. 1)

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