參數(shù)資料
型號(hào): MC145446AFW
廠商: MOTOROLA INC
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Single-Chip 300-Baud Modem with DTMF Transceiver
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO28
封裝: 751M
文件頁(yè)數(shù): 2/14頁(yè)
文件大小: 264K
代理商: MC145446AFW
MC145446A
2
MOTOROLA
BLOCK DIAGRAM
MUX
CONTROL
SHIFT REGISTER
ANALOG GROUND
GENERATOR
+
+
_
SMOOTHING
FILTER
MUX
FSK
DEMODULATOR
FSK
MODULATOR
DTMF
GENERATOR
MODE CONTROL
LOGIC
STATUS
SHIFT REGISTER
POWER–ON
RESET
CLOCK
GENERATOR
NOISE
FILTER
LOW–BAND
BPF
HIGH–BAND
BPF
MUX/
MIXING
X1
X2
Vref
VCC
GND
RxBO
DTMF
IN
RxGC
TxD
TLA
DATA
I/O
RxD
SD/CD/DV
CDA
DSI
TxA1
TxA2
LOW–BAND
BPF
FREQUENCY
DETECTER
HIGH–BAND
BPF
CODE
CONVERTER
(DECODER)
TIMING
CIRCUIT
STATUS
REGISTER
SCK
RxA
E
R/W
4
AGC OUT
FLTC2
FLTC3
FSK/DTMF LOOPBACK PATH
NOISE
FILTER
65 k
30 k
FLTC1
AGC
CARRIER/CPT
DETECTOR
– 1
LEVEL
CONTROL
相關(guān)PDF資料
PDF描述
MC145446A Single-Chip 300-Baud Modem with DTMF Transceiver
MC145446 Single-Chip 300-Baud Modem with DTMF Transceiver
MC145447DW Calling Line Identification(CLID) Receiver with Ring Detector
MC145447 Calling Line Identification(CLID) Receiver with Ring Detector
MC145447P Calling Line Identification(CLID) Receiver with Ring Detector
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