75T2089 View Datasheet(PDF) - TDK Corporation
Part Name
Description
Manufacturer
75T2089 Datasheet PDF : 9 Pages
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75T2089/2090/2091
DTMF Transceivers
DTMF RECEIVER: Timing Characteristics (Continued)
PARAMETER
TSU1 Data Set Up Time
THD1 Data Hold Time
TED ED Detect Time
BER ED Release Time
Output Enable Time
Output Disable Time
CONDITIONS
75T2091 only
75T2091 only
MIN NOM
7
4.2
7
2
DTMF GENERATOR: Electrical Characteristics
Frequency Accuracy
Output Amplitude
Low Band
High Band
Output Distortion
-1.0
R1 = 100Ω to Vn, Vp - Vn = 5.0V
-9.2
-6.6
DC to 50 kHz
DTMF GENERATOR: Timing Characteristics
TSTART Start-Up Time
TSU2
Data Set-Up Time
100
THD2
Data Hold Time
50
TRP
RESET Pulse Width
100
TPW
LATCH Pulse Width
100
CALL PROGRESS DETECTOR: Electrical Characteristics (75T2090/2091 only)
Amplitude for Detection
Amplitude for No Detection
Detect Output
"LIN" Input
Input Impedance
305 Hz-640 Hz
305 Hz-640 Hz
f>2200 Hz, <160 Hz
Logic 0
Logic 1
Max. Voltage
500 Hz
-40
4.5
VDD-10
100
MAX
5.0
22
18
200
200
+1.0
-7.2
-4.6
-20
2.5
0
-50
-25
0.5
VDD
UNIT
µs
ms
ms
ms
ns
ns
%Fo
dBm
dBm
dB
µs
ns
ns
ns
ns
dBm
dBm
dBm
V
V
V
kΩ
6
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