MT88E45 Просмотр технического описания (PDF) - Zarlink Semiconductor Inc
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MT88E45 Datasheet PDF : 30 Pages
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MT88E45
Data Sheet
AC Electrical Characteristics† - CAS Detection Timing
Characteristics
Sym.
Min. Max. Units
1 Tone present detect time
tDP
0.5
10
ms
2 Tone absent detect time
tDA
0.1
8
ms
† AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.
Notes
See Figures16 16, 1717
See Figures16 16, 1717
AC Electrical Characteristics† - Oscillator and Carrier Detect Timing
Characteristics
Sym.
Min. Max. Units
1
Power-up time
OSC2
2
Power-down time
tPU
50
ms
tPD
10
ms
3
Input FSK to CD low delay
tCP
25
ms
4
CD Input FSK to CD high delay
tCA
10
ms
5
Hysteresis
10
ms
† AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.
Notes
AC Electrical Characteristics† - 3-Wire FSK Data Interface Timing (Mode 0)
Characteristics
Sym.
Min.
Typ.‡ Max. Units
Notes*
1
Rise time
2 DR/STD Fall time
3
Low time
4
Rate
5
DATA Input FSK to DATA
delay
tRR
200 ns
tRF
200 ns
tRL
415
416
417 µs
1188 1200 1212 baud
tIDD
1
5
ms
6
Rise time
tR
200 ns
7
DATA
Fall time
tF
200 ns
8
DCLK DATA to DCLK delay
tDCD
6
416
µs
9
DCLK to DATA delay
tCDD
6
416
µs
10
Frequency
fDCLK0 1201.6 1202.8 1204 Hz
11
DCLK
High time
tCH
415
416
417 µs
12
Low time
tCL
415
416
417 µs
13 DCLK DCLK to DR delay
DR/STD
tCRD
415
416
417 µs
† AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25oC and are for design aid only: not guaranteed and not subject to production testing.
*Notes:
1. FSK input data at 1200 ±12 baud.
2. OSC1 at 3.579545 MHz ±0.1%.
3. Function of signal condition.
into 50 pF Load
into 50 pF Load
2
1
into 50 pF Load
into 50 pF Load
1, 2, 3
1, 2, 3
2
2
2
2
21
Zarlink Semiconductor Inc.
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