mc13109 Freescale Semiconductor, Inc, mc13109 Datasheet - Page 9

• Manufacturer Part Number: mc13109
• Description: Universal Cordless Telephone Subsystem
• Manufacturer: Freescale Semiconductor, Inc

ELECTRICAL CHARACTERISTICS
Compressor/ALC/T x Mute/Limiter (See Figure 5)
reference so the input and output swing capability will
increase as the supply voltage increases. The “C In” input is
ac coupled. The ALC (Automatic Level Control) provides a
soft limit to the output signal swing as the input voltage
(Test Conditions: V CC = 2.6 V, f in = 1.0 kHz, T A = 25 C.)
MOTOROLA ANALOG IC DEVICE DATA
Compressor 0 dB Gain
Compressor Gain
Maximum Compressor
Total Harmonic
Input Impedance
Attack Time
Release Time
Expander to
T x Data Mute
ALC Dynamic Range
ALC Output Level
Limiter Output Level
The compressor analog gound is set to the half supply
Level
Tracking
Gain
Distortion
Compressor Crosstalk
Characteristic
V in = –10 dBV, ALC
V in = –30 dBV, Output
V in = –50 dBV, Output
V in –70 dBV
V in –10 dBV, ALC
C cap = 1.0 F,
C cap = 1.0 F,
V (C In) = 0 Vrms,
V in = –10 dBV, ALC
V in = –18 dBV
V in = –2.5 dBV
ALC disabled
disabled, Limiter
disabled
Relative to G
Relative to G
disabled, Limiter
disabled
R filt = 20 k
(see Appendix B)
R filt = 20 k
(see Appendix B)
V in = –10 dBV
disabled
No popping
detectable during R x
Mute transitions
Condition
–
–
(continued)
R x Audio
Input
C In
C In
C In
C In
C In
C In
C In
C In
C In
C In
C In
Pin
In
MC13109
Measure
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
Lim Out
T x Out
Pin
increases slowly (i.e., a sine wave is maintained). The Limiter
circuit limits rapidly changing signal levels by clipping the
signal peaks. The ALC and/or Limiter can be disabled
through the MPU serial interface.
Symbol
ALC out
A Vmax
THD
V lim
Z in
C T
M e
DR
G t
G
t a
t r
–3.0
Min
–11
–23
–24
–
–
–
–
–
–
–
–
–
–
–10.23
–20.23
–0.17
13.5
Typ
–70
–16
–12
0.5
3.0
0.8
30
16
–
–
Max
–9.0
–2.5
–17
–40
3.0
–
–
–
–
–
–
–
–
–
Unit
dBV
dBV
V pp
ms
ms
dB
dB
dB
k
dB
dB
%
9