MC13109A View Datasheet(PDF) - Motorola => Freescale
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Description
Manufacturer
MC13109A Datasheet PDF : 28 Pages
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MC13109A
ELECTRICAL CHARACTERISTICS (continued)
Pre–Amplifier/Expander/Rx Mute/Volume Control
The Pre–Amplifier is an inverting rail–to–rail output swing
operational amplifier with the non–inverting input terminal
connected to the internal VB half supply reference. External
resistors and capacitors can be connected to set the gain and
frequency response. The expander analog ground is set to
the half supply reference so the input and output swing
capability will increase as the supply voltage increases. The
volume control can be adjusted through the MPU interface.
The “Rx Audio In” input signal is ac coupled.
(Test Conditions: VCC = 2.6 V, TA = 25°C, fin = 1.0 kHz, Set External Pre–Amplifier R’s for Gain of 1, Volume Control = (0111).)
Characteristic
Condition
Input Measure
Pin
Pin
Symbol
Min
Typ
Max
Unit
Pre–Amp Open Loop
Gain
–
Rx
Pre–Amp AVOL
–
60
–
dB
Audio In
Pre–Amp Gain
Bandwidth
–
Rx Pre–Amp GBW
–
100
–
kHz
Audio In
Pre–Amp Maximum
Output Swing
RL = 10 kΩ
Rx
Pre–Amp VOmax
–
VCC – 0.3
–
Vpp
Audio In
Expander 0 dB Gain
Level
Vin = –10 dBV
Rx
E Out
G
Audio In
–3.0
–0.3
3.0
dB
Expander Gain
Tracking
Vin = –20 dBV, Output
Rx
E Out
Gt
Relative to G
Audio In
Vin = –30 dBV, Output
Relative to G
–21
–19.84
–19
dB
–42
–40.12
–37
Total Harmonic
Distortion
Vin = –10 dBV
Rx
E Out
THD
–
0.2
–
%
Audio In
Maximum Output
Increase input voltage
Rx
E Out
VOmax
–
–5.0
–
dBV
Voltage
until output voltage
Audio In
THD = 5%, then
measure output
voltage. RL = 10 kΩ
Attack Time
Ecap = 1.0 µF,
Rx
E Out
ta
–
3.0
–
ms
Rfilt = 20 kΩ
Audio In
(See Appendix B)
Release Time
Ecap = 1.0 µF,
Rx
E Out
tr
Rfilt = 20 kΩ
Audio In
(See Appendix B)
–
13.5
–
ms
Compressor to
Expander Crosstalk
V (Rx Audio In)
= 0 Vrms,
Vin = –10 dBV
C In
E Out
CT
–
–76
–
dB
Rx Mute
Vin = –10 dBV
Rx
E Out
Me
–
–65
–
dB
No popping detectable Audio In
during Rx Mute
transitions
Volume Control Range Programmable through
–
–
VCrange
–14
–
MPU Interface
16
dB
Volume Control Steps Programmable through
–
–
VCn
–
16
–
–
MPU Interface
MOTOROLA RF/IF DEVICE DATA
7
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