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10
Am79M574 Data Sheet
SWITCHING CHARACTERISTICS
SWITCHING WAVEFORMS
Symbol
Parameter
Test Conditions
Temperature
Range
Min
Typ
Max
Unit
Note
tgkde
E1 Low to DET High (E0 = 1)
E1 Low to DET Low (E0 = 1)
Ground-Key Detect state
RL open, RG connected
(See Figure H)
0
°C to +70°C
–40
°C to +85°C
0
°C to +70°C
–40
°C to +85°C
3.8
4.0
1.1
1.6
µs
4
tgkdd
E0 High to DET Low (E1 = 0)
0
°C to +70°C
–40
°C to +85°C
1.1
1.6
tgkd0
E0 Low to DET High (E1 = 0)
0
°C to +70°C
–40
°C to +85°C
3.8
4.0
tshde
E1 High to DET Low (E0 = 1)
E1 High to DET High (E0 = 1)
Switchhook Detect state
RL = 600 Ω, RG open
(See Figure G)
0
°C to +70°C
–40
°C to +85°C
0
°C to +70°C
–40
°C to +85°C
1.2
1.7
3.8
4.0
tshdd
E0 High to DET Low (E1 = 1)
0
°C to +70°C
–40
°C to +85°C
1.1
1.6
tshd0
E0 Low to DET High (E1 = 1)
0
°C to +70°C
–40
°C to +85°C
3.8
4.0
DET
tgkde
tshde
tgkde
tshde
DET
tshdd
tshd0
tgkd0
tgkdd
E1
E1 to DET
E0 to DET
E0
E1
16857C-003
Note:
All delays measured at 1.4 V level.