Product Brief
CV92/CV34/CV22
Complete Embedded Data Modems
F e at u r e s
n
Two-chip modem solution:
— CVxx Modem Device in 48-pin TQFP or
100-pin FSBGA (CV92-F100 only)
— CSP1040 DAA in 20-pin ETSSOP
Data mode capabilities:
— V.92, V.90, V.34, V.32bis, V.32, V.22bis,
V.22. V.21, Bell 212A, Bell 103
— V.17 and lower fax rates
— V.44, V.42bis, MNP 5 Data Compression
— V.42, MNP 2–4 Error Correction
CVxx Modem Device features:
— ARM7TDMS Microcontroller
— DSP1600S Digital Signal Processor
— DAA interface and filters
— Host interface configurable for 8-bit parallel,
asynchronous serial or SPI mode
— On-chip PWM speaker driver
— SIO interface for audio codec used in voice and
handset applications
— 24.576 MHz crystal or external 27.0 MHz clock
CSP1040 DAA features:
— Derives power from system for reliable
operation on all phone lines
— Digital transformer isolation barrier
— Programmable event detect for caller-ID
reception and power ring detection
— Programmable pulse shaping and spark quench
— Programmable dc-impedance
termination for country-specific VI templates
— Programmable ac-impedance termination for
return loss matching
— Programmable ringer-impedance emulation
— Hardware support for pulse dialing for accurate
make/break timing.
— Hardware support for ringing level and
frequency qualification for accurate
ring detection.
— Line-in-use and remote handset detection
— World-wide caller ID support
Single 3.3V supply required for chip set.
n
n
The CVxx family of devices is designed to serve embedded applications
that require high-speed dial-up data connections. There are several ver-
sions available based on modulations and other features.
For designs that must support field-upgrade-
ability or customized features, a version of the
CV92 device is available in a 100 FSBGA that
can support external flash ROM. All other ver-
sions run from on-chip ROM. The table on page
2 shows the features supported for the various
versions. The CVxx devices support RS232 and
8-bit microprocessor interfaces. Additionally,
the CVxx devices can be configured for opera-
tion on a 4-wire SPI bus.
n
Figure 1
shows a reference design using the 48-pin CVxx and the CSP1040. This is a 2-layer PCB with components on top-
side only. The layout can be integrated into a larger PCB or built as a separate module with connectors.
n
*
Actual speeds over U.S. telephone lines vary and are less than 56K due to current FCC regulations and line conditions.
V. 92
C V 9 2 -t4 8 B
C V 9 2 L-t 4 8 B
C V 9 0 L-t 4 8 B
C V 3 4 -t4 8 x
C V 3 4 L-t 4 8
C V 2 2 -t4 8 x
X
X
V.90
X
X
X
V. 3 4
X
X
X
X
X
V.2 2 bi s
X
X
X
X
X
X
P Os
X
X
X
X
X
X
V.17 FaX
X
Voi ce
X
Par /s er
X
X
X
sPI
X
X
X
X
X
X
X
Ordering Information
DeVICe
CV22
Part NumBer
L-CV22-T48B-DB
L-CV22-T48B-DT
CV34
L-CV34-T48B-DB
L-CV34-T48B-DT
CV34L
L-CV34L-T48B-DB
L-CV34L-T48B-DT
CV90L
L-CV90L-T48B-DB
L-CV90L-T48B-DT
CV92
L-CV92-F100A-DB
L-CV92-F100A-DT
L-CV92-T48B-DB
L-CV92-T48B-DT
CV92L
L-CV92L-T48B-DB
L-CV92L-T48B-DT
CSP1040
L-CSP1040A3-E11-D
L-CSP1040A3-E11-DT
PaCk age
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
100 FSBGA
100 FSBGA
48 TQFP
48 TQFP
48 TQFP
48 TQFP
20-pin ETSSOP
20-pin ETSSOP
COmCODe
7110158770
7110158780
7110109500
7110109510
7110158720
7110159010
7110158750
7110158760
7110146740
7110146750
7110109480
7110109490
7110158730
7110158740
7110072260
7110072670
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May 2007 OT07-141OTH
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