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TP3094V Datasheet

  • TP3094V

  • Quad PCM Codec/Filter

  • 19頁

  • NSC

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TP3094 Quad PCM Codec/Filter
February 2000
TP3094 COMBO
廬
Quad PCM Codec/Filter
General Description
The TP3094 is a monolithic PCM Codec and Fil-
ter device implemented using a digital signal pro-
cessing architecture. It provides four voice
channels, combining transmit bandpass and re-
ceive low pass channel filters with companding A-
law or m-law PCM encoders and decoders. The
device is fabricated using National鈥檚 advanced
CMOS process.
The device includes anti-aliasing filters and sig-
ma-delta converters dedicated to each channel,
and by a common signal processing unit which
performs all the remaining filtering and process-
ing for the four channels.
The TP3094 includes a flexible PCM digital inter-
face, which allows the device to be connected to
PCM busses of different formats. It can also be
connected with other TP3094 devices in a cas-
cade fashion, for a system with up to 128 POTS
interfaces (when a 2.048MHz PCM bus is used).
Features
鈥?Handles four voice channels
鈥?Complete Codec and Filter system including:
- Transmit and receive channel filters
- A-law or
碌
-law companding encoder/decoder
鈥?Power down mode for low power consumption
鈥?Compatible to standard time division multi-
plexed PCM bus
- 8 bit mode, frame signal from external reference
- 32 bit mode, internal TSA, with consecutive TS
鈥?Up to 128 channels (32 devices) can be cas-
caded
鈥?Programmable functions (common for all 4
channels):
- A-law or
碌
-law
- Single MCLK clock,automatically selectable from
8.192MHz, 4.096MHz, 2.048MHz and
1.536/1.544MHz
- Digital and Analog loopback test modes
Designed for CCITT and LSSGR applications
Single +5V power supply
44 lead PLCC surface mount package
Maximize line card circuit density
Use in Central Office, Loop Carrier, and PBX
equipment subscriber line and trunk cards
鈥?Wide operating temperature range
-40擄C to
85擄C
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Connection Diagram
VXI3
GXO3
VRO3
AVCC1
PDN3
PDN2
PDN1
PDN0
A/碌Law
MCLK
DR
6
5
4
3
2
1
44
43
42 41 40
39
38
37
36
AGND1
VXI2
GXO2
VRO2
NC
VRO1
GXO1
VXI1
NF
AGND0
VXI0
7
8
9
10
11
12
13
14
15
16
17
18 19
20 21 22 23 24
25 26 27 28
TP3094
35
34
33
32
31
30
29
DX
DGND
PT4
DVCC
FSX3
NC
FSR3
FSX2
FSR2
FSX1
FSR1
COMBO
廬
and TRI-STATE
廬
are registered trademarks of National Semiconductor Corporation
GXO0
VRO0
PT3
AVCC0
PT1
PCMMode
PT2
TST
TSX
FSR0
FSX0
Order Number TP3094V
See NS Package V44A
漏
2000 National Semiconductor Corporation
www.national.com

TP3094V 產品屬性

  • National Semiconductor (TI)

  • Tube

  • 25

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