Z0221524VSCR4508TR Zilog, Z0221524VSCR4508TR Datasheet - Page 12

• Manufacturer Part Number: Z0221524VSCR4508TR
• Description: IC MODEM CTRL 2400BPS 44PLCC
• Manufacturer: Zilog

Specifications of Z0221524VSCR4508TR

• Data Format: V.21, V.22, V.23, Bell 103, Bell 212A
• Baud Rates: 2.4k
• Interface: Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Z0221524VSCR4508T

PS001907-0904
Symbol
RESET
V
D
XTAL
EXTAL
TEST
AV
TXO+
TXO–
A
V
A
CF1
CF2
RXI–
DD
GND
REF
GND
GND
DD
PLCC
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Table 1. Pin Descriptions
LQFP
Pin #
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Function
Reset (Active
low)
Digital Power
Digital Ground
Crystal
(Time-based
Output)
Crystal
(Time-based
Output)
Analog Power
Transmit
Differential
Analog Output
Positive
Transmit
Differential
Analog Output
Negative
Analog Ground
Reference
Voltage active
High
Analog Ground
Integration
Capacitor PIN 1
Integration
Capacitor PIN 2
Receive
Differential
Analog Output
Negative
Input,
Output
Output
Input
Input
Analog
Output
Analog
Output
Analog
Output
Analog
Input
Analog
Input
Analog
Input
Direction Description
The RESET signal sets the modem to a RESET
state.
This pin connects a parallel-resonant crystal.
This pin is left open if an external clock is used
instead of a crystal.
This pin connects a parallel-resonant crystal.
An external clock can be input to the device on
this pin when a crystal is not used.
This pin is a test pin that must be tied to digital
ground.
The TXO+ is capable of driving a 600W
resistive load over a leased line or public
switched telephone network via a Data Access
Arrangement (DAA).
The TXO+ is capable of driving a 600W
resistive load over a leased line or public
switched telephone network via a Data Access
Arrangement (DAA).
An internally generated DC voltage.
Connect an 82pF capacitor between CF2 and
CF1 to complete the internal feedback
integration filter for improved analog A/D
performance.
Connect an 82pF capacitor between CF2 and
CF1 to complete the internal feedback
integration filter for improved analog A/D
performance.
These are the analog inputs from the DAA.
Pin Descriptions
Z02215
6