mc33111p Lansdale Semiconductor, Inc., mc33111p Datasheet - Page 2

• Manufacturer Part Number: mc33111p
• Description: Low Voltage Compander
• Manufacturer: Lansdale Semiconductor, Inc.

ML33111
Page 2 of 12
V in
MAXIMUM RATINGS
NOTE: Devices should not be operated at these limits. The “Recommended Operating Conditions”
V CC Supply Voltage (Pin 16 – Pin 1)
High Input Voltage (Pins 3, 4, 8, 12, 14)
Low Input Voltage (Pins 3, 4, 8, 12, 14)
Output Source Current (Pins 2, 6, 10, 15)
Output Sink Current (Pins 2, 6, 10, 15)
Storage Temperature
Ground
Compressor Output
Compressor Input
Compressor Mute
Compressor Filter
Amplifier #1
Passthrough
Amplifier #2
Expander Filter
Expander Mute
No Connect
Expander Input
Expander Output
V CC
V out
provides for actual device operation.
∆ Gain
Name
Rectifier
10 k
Compressor
0.3162 x V
Vb
Rating
in
9, 10
Pin
6, 7
12
13
14
15
16
11
1
2
3
4
5
8
V out
Connect to a clean power supply ground.
Output of the compressor section.
Compressor input. The input impedance is nominally 10 kΩ. Nominal signal range is
1.0 mVrms to 1.0 Vrms in normal mode, and up to 0.8 Vrms in passthrough mode.
Must be capacitor coupled to the signal source.
A logic high mutes the compressor. A logic low permits normal operation and passthrough.
Connect an external capacitor to filter the full wave rectifier’s output.
This capacitor affects attack and decay times, and low frequency accuracy.
Inverting input (7) and output (6) of an op amp internally referenced to Vb.
A logic high sets the gain of both expander and compressor to ≈ 0 dB, independent of
input level.
Inverting input (9) and output (10) of an op amp internally referenced to Vb.
Connect an external capacitor to filter the full wave rectifier’s output.
This capacitor affects attack and decay times, and low frequency accuracy.
A logic high mutes the expander. A logic low permits normal operation and passthrough.
This pin is not internally connected to anything.
Expander input. The input impedance is nominally 10.9 kΩ. Nominal signal range is
10 mVrms to 316 mVrms in normal mode, and up to 1.0 Vrms in passthrough mode.
Must be capacitor coupled to the signal source.
Output of the expander section.
Power supply. Connect to a power supply voltage in the range of 3.0 V to 7.0 V.
Bypass capacitor should be provided at this pin.
– 20 dB
– 30 dB
– 40 dB
–10 dB
20 dB
10 dB
Compression
0 dB
PIN FUNCTION DESCRIPTION
1.0 V
100 mV
10 mV
1.0 mV
TRANSFER FUNCTIONS
Symbol
www.lansdale.com
V CC
T stg
V IH
V IL
IO+
IO–
(Voltages are rms)
31.6 mV
316 mV
10 mV
Self-limiting
Self-limiting
– 65, +150
V CC + 0.5
– 0.5, +12
Value
– 0.5
Expansion
Description
Unit
Vdc
Vdc
Vdc
mA
mA
°C
V in
40 k
15 k
LANSDALE Semiconductor, Inc.
∆ Gain
Rectifier
Expander
V out = 10 x V in 2
Vb
V out
Issue A