900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Motorola Electronic Components Datasheet

MC33110 Datasheet

LOW VOLTAGE COMPANDER

No Preview Available !

Low Voltage Compander
The MC33110 contains two variable gain circuits configured for
compressing and expanding the dynamic range of an audio signal. One
circuit is configured as an expander, while the other circuit can be configured
as a compressor or expander. Each circuit has a full wave rectifier to provide
average value information to a variable gain cell located in either the input
stage or the feedback path. An internal, temperature stable bandgap
reference provides the necessary precision voltages and currents required.
The MC33110 will operate from a supply voltage of 2.1 to 7.0 V, over a
temperature range of –40 to 85°C. The device is designed to accommodate
an 80 dB dynamic range from –60 dB to 20 dB, referenced to 100 mVrms.
Applications include cordless telephone, CB, walkie–talkie, most voice
RF links, and any application where the signal–to–noise ratio can be
improved by reducing the transmitted dynamic range. Other applications
include speakerphone and voice activated intercom, dictating machine,
standard telephone, etc.
The MC33110 is packaged in a 14 pin DIP for through–the–hole
applications and an SO–14 surface mount.
Operating Supply Voltage: 2.1 to 7.0 V
No Precision External Components Required
80 dB Dynamic Range Compressed to 40 dB, Re–expandable to 80 dB
Unity Gain Level: 100 mVrms
Adjustable Response Time
Ambient Operating Temperature: –40 to 85°C
Temperature Compensated Reference
Applications Include Cordless Phone, CB Radio, Speakerphone, etc.
Order this document by MC33110/D
MC33110
LOW VOLTAGE
COMPANDER
SEMICONDUCTOR
TECHNICAL DATA
14
1
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
14
1
P SUFFIX
PLASTIC PACKAGE
CASE 646
PIN CONNECTIONS
Simplified Block Diagram
2.2 µF
Exp
Input
3
5
Exp. 4
Output
14
VCC
VB
10 µF
Gnd
6
7
Rectifier
4.7 k
Gain
10 k
10 k
+
VB
Bias
&
Reference
Generator
Rectifier
Gain
VB +
4.7 k
10 k
10 k
MOTOROLA RF/IF DEVICE DATA
12
2.2 µF
8
2.0 µF
11 Comp
Output
9 20 k 1.0 µF
20 k
10 Comp
Input
Vref 1
NC 2
Exp Filter 3
Exp Output 4
Exp Input 5
VB 6
Gnd 7
14 VCC
13 NC
12 Comp Filter
11 Comp Output
10 Comp Input
9 Inv Input
8 Comp Feedback
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC33110D
MC33110P
TA = –40 to 85°C
SO–14
Plastic DIP
© Motorola, Inc. 1998
Rev 1
1


Motorola Electronic Components Datasheet

MC33110 Datasheet

LOW VOLTAGE COMPANDER

No Preview Available !

Name
Vref
NC
Expander Filter
Expander Output
Expander Input
VB
Ground
Compressor Feedback
Inverting Input
Compressor Input
Compressor Output
Compressor Filter
VCC
Pin
1
2, 13
3
4
5
6
7
8
9
10
11
12
14
MC33110
PIN DESCRIPTION
Description
Normally this pin is not used and is left open. It can be used to make limited adjustments to
the 0 dB level. Any noise or leakage at this pin will affect the 0 dB level and gain tracking.
No connection. These pins are not internally connected.
Connect to an external capacitor to filter the full wave rectifier’s output. This capacitor
affects attack and decay times, as well as low frequency accuracy.
Output of the expander amplifier.
The input impedance is nominally 3.2 k. Nominal signal range is 3.16 mVrms to
316 mVrms. Must be capacitor coupled to the signal source.
An internal reference voltage, nominally VCC/2. This is an ac ground and must be well
filtered to obtain high power supply rejection and low crosstalk.
Connect to a clean power supply ground.
Input to the compressor variable gain stage and rectifier. Normally the signal is supplied by
the compressor’s output (Pin 11). Input impedance is nominally 3.2 k.
Inverting input to the compressor amplifier. Normally, this is connected to the compressor’s
output through a filtered dc feedback path.
The input impedance is nominally 10 k. Nominal signal range is 100 µVrms to 1.0 Vrms.
Must be capacitor coupled to the signal source.
Output of the compressor amplifier.
Connect to an external capacitor to filter the full wave rectifier’s output. This capacitor
affects attack & decay times, and low frequency accuracy.
Power supply pin. Connect to a power supply providing between 2.1 V and 7.0 V. Nominal
current consumption is 3.5 mA.
Compressor
Rectifier
Gain
R5 R6
Iref
Vin R4
VB +
Vout
+ ǸVout
R5 x R6 x Iref x Vin
7.2 x R4
+ Ǹ0.3162 x Vin
Transfer Functions
Expander
Compression
20 dB 1.0 V
10 dB
0 dB 100 mV
– 10 dB
– 20 dB 10 mV
– 30 dB
– 40 dB 1.0 mV
– 50 dB
– 60 dB 100 µV
(Voltages are rms)
316 mV
31.6 mV
10 mV
3.16 mV
Expansion
Vin
R2
R1
RS
Gain
VB
Rectifier
+ Vout
Iref
+Vout
7.2 x R3 x Vin2
R1 x R2 x Iref
+ 10 x Vin2
2 MOTOROLA RF/IF DEVICE DATA


Part Number MC33110
Description LOW VOLTAGE COMPANDER
Maker Motorola
PDF Download

MC33110 Datasheet PDF






Similar Datasheet

1 MC33110 LOW VOLTAGE COMPANDER
Motorola
2 MC33111 Low Voltage Compander
Motorola





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy