SA2531 Datasheet, PDF (19/24 Pages) Sames – VERSATILE SINGLE CHIP TELEPHONE WITH 14 NUMBER REPERTORY DIALLER

SA2531 A/B/C/E/G/U
AC Characteristics (cont’d) (I_LINE = 15 mA;f=800Hz unless otherwise specified)
Symbol Parameter
Conditions
Min Typ Max Units
RX
Receive
Test Circuit Fig.5
A_RX
Receive Gain (RO1/RO2) Z_RL=600Ω (Α/Β/Ε/F/J)
1
2
Z_RL=1000Ω (C/G/U)
0
(D)
6
3 dB
∆
A
R
Variation
X/F
with
Frequency
THD Distortion
V _{A G C} SoftClipLevel
A
Soft Clip Overdrive
SCO
t _ATTACT
6dB
f=500 Hz to 3.4 kHz
V_RI≤0.5V_RMS
V_RI=
Attact Time
±0.8
1
10
V_RI>0.8V
dB
2%
V _PEAK
dB
30
µs/
t _{D E C A Y} DecayTime
V _{N O} Noise Output Voltage
V _{F C} Unwanted Frequency
Components
50 Hz...20 kHz
Z _IN
V_{IN RI}
ST
Input Impedance (RI)
Input Voltage Range(RI)
Sidetone
Test Circuit Fig.5
A _ST
V_{IN ST}
Z _IN
Sidetone Cancellation
Input Voltage Range (STB)
Input Impedance (STB)
Keyboard
V_RI≤0.5V_RMS
t_D
Key Debounce Time
HS Input
20
ms/6dB
-72 dBmp
-60 dBm
8
±2
26
±2
80
kΩ
V _PEAK
dB
V _PEAK
kΩ
15
ms
t _HS-L
t
HS-H
∆F
V _MF
V_L-H
V_L-H
Low to High Debounce Goingoff-hook
High to Low Debounce
DTMF
Frequency deviation
Line breaks/on-hook
Note 5
MF Tone Level(Low group) SA2531B/D/G/U
SA2531A/C/E/F/J
Preemphasis Low to High SA2531A/B/C/E/F/J/U
Preemphasis Low to High SA2531D/G
15
240
-12.5 -11
-9.5 8-
2.0 26.
2.0 2.6
ms
ms
1.2 %
-9.5 dB
-6.5 dB
3.0 dB
3.2 dB
sames
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