mt9092apr1 Zarlink Semiconductor, mt9092apr1 Datasheet - Page 2

• Manufacturer Part Number: mt9092apr1
• Description: Fully Featured Digital Telephone Circuit With Embedded Hdlc Transceiver And Dsp For Tone Generations And Hands Free Operation
• Manufacturer: Zarlink Semiconductor

Pin Description
Pin
10
12
11
#
1
2
3
4
5
6
7
8
9
PWRST Power-up Reset (Input). CMOS compatible input with Schmitt Trigger (active low).
Name
DSTo
V
V
DSTi
V
IRQ
C4i
M+
NC
F0i
IC
SSD
Bias
Ref
Non-Inverting Microphone (Input). Non-inverting input to microphone amplifier from the
handset microphone.
No Connect. No internal connection to this pin.
Bias Voltage (Output). (V
Connect 0.1 µF capacitor to V
Reference voltage for codec (Output). Nominally [(V
Connect 0.1 µF capacitor to V
Internal Connection. Tie externally to V
ST-BUS Serial Stream (Input). 2048 kbit/s input stream composed of 32 eight bit channels;
the first four of which are used by the MT9092. Input level is TTL compatible.
ST-BUS Serial Stream (Output). 2048 kbit/s output stream composed of 32 eight bit
channels. The MT9092 sources digital signals during the appropriate channel, time coincident
with the channels used for DSTi.
4096 kHz Clock (Input). CMOS level compatible.
Frame Pulse (Input). CMOS level compatible. This input is the frame synchronization pulse
for the 2048 kbit/s ST-BUS stream.
Digital Ground . Nominally 0 volts.
Interrupt Request (Open Drain Output). An active low output indicating an unmasked HDLC
interrupt event. Requires 1 kΩ pull-up to V
DATA 2
DATA 1
VSSD
DSTo
SCLK
DSTi
IRQ
WD
C4i
F0i
CS
7
8
9
10
11
12
13
14
15
16
17
Figure 2 - Pin Connections
DD
Zarlink Semiconductor Inc.
44 PIN PLCC
SSA
/2) volts is available at this pin for biasing external amplifiers.
SSA
MT9092
.
.
2
Description
SS
DD
for normal operation.
.
29
39
38
37
36
35
34
33
32
31
30
SPKR+
SPKR-
HSPKR+
HSPKR-
VDD
BP
S12
S11
S10
S9
S8
DD
/2)-1.5] volts. Used internally.
Data Sheet