ICM7115
LOW COST SINGLE CHIP TELEPHONE IC
WITH VOLUME CONTROL
Side Tone (ST)
GST
ZIN STB
VIN STB
Side Tone Cancellation LLC=GND, RZAC=100KΩ
Input Impedance
Input Voltage Range
23
dB
KΩ
VPEAK
80
± 2.8
Output Driver (BJT)
± 2.8
± 2.8
VIN PNP
VTXPNP
Input Voltage Range
Dynamic Range
VPEAK
VPEAK
Return Loss
RL
Return Loss
ZLINE=600Ω, RZAC=100KΩ
18
dB
Keyboard
tD
Key debounce time
64
ms
HS/DPB INPUT
tHS-L Low to High Debounce Going off-hook
tHS-H High to Low Debounce Going on-hook
15
240
ms
ms
Tone Ringer
VMO
tMD
F1
F2
tDT
fMIN
fMAX
DTMF
F
tTD
tITP
Melody Output
Melody Delay
Frequency 1
Frequency 2
Detection Time
Min. Detection Freq.
Max. Detection Freq.
PDM
10
ms
Hz
Hz
ms
Hz
Hz
1250
1600
Ring Freq = 20Hz
50
13
80
70
-0.31
80
80
+0.75
84
84
%
ms
ms
Frequency Deviation
Tone Duration
Inter Tone Pause
note 2
note 1
note 1
82
82
Note 1: The values are valid during automatic dialing and are minimum values during manual dialing, i.e. the tones will
continue as long as the key is depressed.
Note 2: This does not include the frequency deviation of the ceramic resonator.
Rev. 2.5
ICmic reserves the right to change the specifications without prior notice
7
ICMIC [ IC MICROSYSTEMS ]
