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參數(shù)資料
| 型號： | PCT1789N |
| 英文描述： | PCT303DL |
| 中文描述： | PCT303DL |
| 文件頁數(shù)： | 1/40頁 |
| 文件大小： | 632K |
| 代理商： | PCT1789N |
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PC-TEL, Inc.
2
1789N0DOCDAT01A-0399
PCT1789N DATA SHEET
!
PRELIMINARY
PRELIMINARY
303DL F
EATURES
Complete DAA includes:
3.3 V to 5 V digital/analog power supplies
JATE filter option
86 dB dynamic range TX/RX paths
Daisy-chaining for up to eight devices
Integrated ring detector
2000 V isolation
Support for Caller ID
Low-profile SOIC packages
Direct interface to DSPs
Integrated modem CODEC
Compliant with FCC Part 68
Low-power standby mode
Proprietary ISOcap technology
Optional IIR digital filter
303DL A
PPLICATIONS
Modems
Phone line interface systems
303DL F
UNCTIONAL
D
ESCRIPTION
The 303DL chip set is an integrated direct digital access
arrangement (DAA) chip set that provides a digital, low-
cost, solid-state interface to a telephone line. Available in
two 16-pin small outline packages, it eliminates the need
for an analog front end (AFE), an isolation transformer,
relays, opto-isolators, and a 2- to 4-wire hybrid. The
303DL dramatically reduces the number of discrete
components and cost required to achieve compliance
with FCC Part 68. The 303DL interfaces directly to
standard modem DSPs and supports all U.S. FCC and
JATE out-of-band noise requirements.
303DL F
UNCTIONAL
B
LOCK
D
IAGRAM
303DL Chip Set
Digital
Interface
Control
Interface
Isolation
Interface
DC
Termination
Out
In
Hybrid
Ring Detect
Off-hook
MCLK
SCLK
FSYNC
SDI
SDO
FC/RGDT
RGDT/FSD
OFHK
MODE
RESET
TX
RX
RX
VREG
DCT
REXT
IGND
RNG1
RNG2
QB
QE
PCT303L
PCT303D
Isolation
Interface
AOUT
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