XEV90 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 56 KBPS DAA in a PLCC Package

XEV90
7-99
56 KBPS DAA in a PLCC Package
Description
Xecom’s XEV90 is a complete DAA integrated into a
compact PLCC package. The XEV90 supports analog
data transfer to 56 KBPS. The 68-Pin PLCC package
permits automated, high-volume assembly.
The XEV90 does not sacrifice performance for small size
and surface-mount convenience. The heart of the XEV90
is a proprietary, low profile, low distortion transformer.
This wide bandwidth, low distortion device provides the
clear signal path required for 56 KBPS analog data
transfer.
Like all Xecom DAA's the XEV90 is a complete
telephone line interface. It includes the telephone line
transformer, line current holding circuit, hookswitch and
ring indicator. The XEV90 replaces the dozens of
components found in a discrete DAA design.
Features
* Package: 68-Pin PLCC (only 18 pins used)
dimensions 0.952 inches by 0.952 inches by 0.170
inches high
* Meets Total Harmonic Distortion requirements for
reliable 56 Kbps modems (-85 dB typical);
* Integrated Low-Distortion Telephone Line
Transformer
* Integrated Ring Detection with active high and
active low ouput signals
* Operates on either a single Power Supply of +5 or
+ 3 Volts;
* Solid-State Hookswitch Control with active high
and active low inputs;
* FCC Part 68 Compliant;
* Extended Temperature Range available;
Figure 1: XEV90 BLOCK DIAGRAM
MUTE
L1
L2
DC2
DC1
T1
Line Trans-
T2
former
OH(+)
OH(-)
RI(+)
RI(-)
Line Current
Holding Cir-
cuit
Billing Tone
Filter
(Optional)
Hookswitch
Low
Impedance
Dialing
Ring De-
tector
Tip
Ring
XECOM
XEV90