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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)： | 5/14頁(yè) |
| 文件大小： | 264K |
| 代理商： | MC145446AFW |
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MC145446A
MOTOROLA
5
DTMF RECEIVER CHARACTERISTICS
(VCC = 5.0 V
±
10%, TA = – 20 to 70
°
C)
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
Input Impedance
50
—
—
k
Detect Signal Level (Each Tone)
– 48
—
0
dBm
Twist (High Group Tone/Low Group Tone
– 10
—
10
dB
Frequency Detect Band Width (Figure 4)
±
1.5%
±
2Hz
—
—
—
Frequency No–Detect Band Width (Figure 4)
—
—
±
3.5
%
DTMF Detect Timing
OFF to ON
TCDON
CD1 = 0, CD0 = 1
—
25
—
ms
CD1 = 1, CD0 = 0
—
30
—
CD1 = 1, CD0 = 1
—
40
—
ON to OFF
TCDOFF
CD1 = 0, CD0 = 1
—
25
—
CD1 = 1, CD0 = 0
—
35
—
CD1 = 1, CD0 = 1
—
25
—
DEMODULATOR CHARACTERISTICS
(VCC = 5.0 V
±
10%, TA = – 20 to 70
°
C)
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
Bit Bias
ID
Input Level = – 24 dBm
S/N = 4 dB
—
5
—
%
Bit Error Rate
(CCITT Line Simulation, 511–Bit Pattern)
BER
—
0.00001
—
—
SWITCHING CHARACTERISTICS
(VCC = 5.0 V
±
10%, TA = – 20 to 70
°
C)
Characteristic
Symbol
Timing
Diagram
Reference
No.
Min
Typ
Max
Unit
Input Pulse Width (H) E, SCK
twh
twl
tc
tr
tf
trec
tsu
1
50
—
—
ns
Input Pulse Width (L) E, SCK
2
50
—
—
ns
Clock Cycle
3
100
—
—
ns
Input Rise Time
4
—
—
2
μ
s
Input Fall Time
5
—
—
2
μ
s
Recovery Time E to SCK
6, 18
50
—
—
ns
Setup Time
DATA to SCK
7
50
—
—
ns
R/W
↓
to DATA
9
100
—
—
ns
R/W
↑
to DATA
12
50
—
—
ns
Hold Time
SCK to DATA
th
8
50
—
—
ns
E to R/W
10
50
—
—
ns
DATA to R/W
14
50
—
—
ns
R/W to DATA
15
50
—
—
ns
Read Data Delay Time
E to DATA
td
13
—
—
50
ns
SCK to DATA
17
—
—
50
ns
Enable Minimum Interval
twe
twm
11
—
—
450
ns
Mode Switch Minimum Interval
16
—
—
600
ns
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PDF描述 |
|---|---|
| MC145446A | Single-Chip 300-Baud Modem with DTMF Transceiver |
| MC145446 | Single-Chip 300-Baud Modem with DTMF Transceiver |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MC145447DW | 制造商:Motorola Inc 功能描述:CALLER NUMBER ID CIRCUIT, 16 Pin, Plastic, SOP |
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| MC145447P | 制造商:Motorola Inc 功能描述: |
| MC145475DW | 制造商:Motorola Inc 功能描述:DATACOM, ISDN CONTROLLER, PDSO28 |
| MC145480DW | 制造商:MOTOROLA 功能描述:_ 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:PCM CODEC, Single, 20 Pin, Plastic, SOP |
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