CMX649 CML Microcircuits, CMX649 Datasheet - Page 4

• Manufacturer Part Number: CMX649
• Description: ADM Codec
• Manufacturer: CML Microcircuits

ADM Codec
3.
Notes:
SOIC (D3)
Package
2003 CML Microsystems Plc
Pin No.
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Signal List
I/O
NC
TSSOP (E3)
Package
Pin No.
=
=
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Input/Output
No Connection
XTAL/CLK
ENC VAD
DEC VAD
RX DATA
MIC OUT
TX DATA
RX CLK
TX CLK
AUDIO
Name
STRB
MIC +
RPLY
SCLK
MIC -
IRQN
CMD
V
OUT
CSN
V
V
BIAS
DD
SS
Signal
Analog Output
Analog Output
Analog Output
Digital Output
Digital Output
Digital Output
Digital Output
Digital Output
Analog Input
Analog Input
Analog Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital I/O
Digital I/O
Power
Power
Type
4
Strobe signal for 8/16 buffered serial I/O.
Encoder voice activity detector output.
Positive supply rail.
Analog output signal from microphone
amplifier.
Analog non-inverting input to
microphone amplifier.
Analog inverting input to microphone
amplifier.
V
applications without buffering. Pin
should be decoupled to V
capacitor (>1µF).
Analog Output signal from decoder.
Negative supply rail (Ground).
Decoder voice activity detector output.
Received signal serial data input.
Decoder data clock.
4 – 16 MHz crystal oscillator input.
)
)
) C-BUS control signals.
)
)
Clock signal for encoded data out.
Encoded data output.
DD
/2 – Not suitable for external
Description
SS
with a
CMX649
D/649/2