CH1788 Cermetek Microelectronics, CH1788 Datasheet - Page 23

• Manufacturer Part Number: CH1788
• Manufacturer: Cermetek Microelectronics

Specifications of CH1788

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Cermetek Microelectronics, Inc.
Tone 2
Distortion
DTMF Twist (Balance)
DTMF Tone Duration
Pulse Dialing Rate
Pulse Dialing Make/
Break
Pulse Interdigit Interval
Guard Tone Frequency
Guard Tone Amplitude
Guard Tone Frequency
Guard Tone Amplitude
High Channel Transmit
Amplitude
Guard Tone 2
Harmonic Distortion
Call Progress
Passband Frequency
Wait Time for Dial tone
Return loss @ 1000Hz
2006 Cermetek Microelectronics, Inc.
CH1788
CH1788ET
CH1788-3
CH1788-3ET
Model
Parameter
nd
Harmonic
nd
5V, Full function, FCC Part 68 approved, UL 1950 Listed, Hermetic
5V, Full function, FCC Part 68 approved, UL 1950 Listed, Hermetic
3.3V, Full function, FCC Part 68 approved, UL 1950 Listed, Hermetic
3.3V, Full function, FCC Part 68 approved, UL 1950 Listed, Hermetic
Minimum
120
700
50
8
2
Table 11. Summary CH1788 Family of Products.
Table 10. Other Performance Specifications.
Typical
Summary of Features
39/61
1800
550
-40
10
30
-6
-9
-1
2
Page 23
Maximum
3000
255
620
255
-35
20
Units
pps
sec
ms
ms
dB
dB
Hz
dB
Hz
dB
dB
dB
Hz
dB
%
CH1788 Surface Mount PLCC 2400bps Modem
Document No. 607-0018 Revision A6 (01/06)
HYB enabled into 600Ω
95ms default
10pps default
Referenced to High Channel
Referenced to High Channel
US, Canada default
789ms default
Transmit
Referenced to High Channel
Transmit
Transmit
Referenced to High Channel
Transmit
Referenced to Low channel,
Guard tone enabled
Two second default
T
r
=600Ω + 2.16 µF
0°C to 70°C
-40°C to 85°C
0°C to 70°C
-40°C to 85°C
Comments
Temperature
Operating