I5216 Datasheet, PDF (26/83 Pages) Winbond – 8 TO 16 MINUTE VOICE RECORD/PLAYBACK SYSTEM WITH INTEGRATED CODEC

I5216 SERIES
Advanced Information
PRELIMINARY
PLAYBACK MODE
The command sequence for an analog Playback operation can be handled several ways. One
technique is to do a Load Address (81h), which requires sending a total of four bytes, followed by a
Play Analog, which is a Command Byte (A8h) preceded by the Slave Address Byte. This is a total of six
bytes plus the times for Start, ACK, and Stop.
Another approach for an analog Playback operation is via a single four byte exchange, which consists
of the Slave Address (80h), the Command Byte (A9h) for Play Analog @ Address, and the two address
bytes.
RECORD MODE
The command sequence for an Analog Record is a four byte sequence consisting of the Slave
Address (80h), the Command Byte (91h) for Record Analog @ Address, and the two address bytes.
(See I²C Interface on page 17 for more detail.)
FEED THROUGH MODE
SDI
WS
SCK
SDIO
1
(I2S0)
µ/A-Law
Expander
2
(LAW1,LAW0)
DAC
Output
GAIN
3
3
(DAPD,HSR0,MUTE) (COG2,COG1,COG0)
FILTO+
VOL+
SUM2+
DAO+
DAO-
SUM2-
VOL-
FILTO-
SPEAKER
Spkr.
AMMPP
2
(OPA1,O PA0)
2
(OPS1,O PS0)
SP+
SP-
µ/A-Law
Compressor
ADC
2
4
(LAW1,LAW0) (ADPD,HSR0,HPF0,MUTE)
Input
GAIN
3
(CIG2,CIG1,CIG0)
2
(CDI1,CDI0)
SUM2+
INP +
MIC+
MIC -
INP -
SUM2-
This diagram shows the part of the I5216 block diagram that is used in Feed Through Mode. The rest of the chip
will be powered down to conserve power. Note that the Microphone and Speaker +/– paths are differential
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Publication Release Date: November 30, 2001
Revision A1