ml12502 Lansdale Semiconductor, Inc., ml12502 Datasheet

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ml12502

Manufacturer Part Number
ml12502
Description
Analog Mixer With On?chip Regulator For Bias Control
Manufacturer
Lansdale Semiconductor, Inc.
Datasheet
Legacy Device: Motorola 12502
commercial ML12002 device. It is a double balanced ana-
log mixer, including an input amplifier feeding the mixer
carrier port and a temperature compensated bias regulator.
The input circuits for both the amplifier and mixer are dif-
ferential amplifier circuits. The on-chip regulator provides
all of the required biasing.
high-frequency wide-band circuits. Other typical applica-
tions include suppressed carrier and amplitude modulation,
synchronous AM detection, FM detection, phase detection,
and frequency doubling, at frequencies up to UHF.
There are two package offerings:
Page 1 of 8
The ML12502 is the military temperature version of the
This circuit is designed for use as a balanced mixer in
• Dual Inline 14 Lead, Ceramic Package.
• Operating Temperature Range: T A = –55° to +125°C
Oscillator
Inputs
Signal
Inputs
Local
2
3
8
9
V B
Figure 1. Logic Diagram
Amplifier
Regulator
Bias
V R
Carrier
Port
Signal
Port
V R
Mixer
V B
www.lansdale.com
12
11
Output
ML12502
Analog Mixer With On–Chip
Regulator For Bias Control
CROSS REFERENCE/ORDERING INFORMATION
CERDIP 14
Alternate Signal
Local Oscillator
Local Oscillator
PACKAGE
Null Adjust
Null Adjust
Regulator
Bypass
Input
Input
Input
V EE
14
CERAMIC PACKAGE
PIN CONNECTIONS
CERDIP 14 = C
1
CASE 632
MOTOROLA
12502/BCA
1
2
3
4
5
6
7
(Top View)
14
13
12
11
10
9
8
ML12502/BCA
LANSDALE
V CC
Resistor Load
Data Output
Data Output
Regulator
Bypass
Mixer Signal
Input
Mixer Signal
Input
Issue 0

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ml12502 Summary of contents

Page 1

... Legacy Device: Motorola 12502 The ML12502 is the military temperature version of the commercial ML12002 device double balanced ana- log mixer, including an input amplifier feeding the mixer carrier port and a temperature compensated bias regulator. The input circuits for both the amplifier and mixer are dif- ferential amplifier circuits ...

Page 2

... ML12502 Page www.lansdale.com LANSDALE Semiconductor, Inc. Issue 0 ...

Page 3

... ML12502 Page www.lansdale.com LANSDALE Semiconductor, Inc. Issue 0 ...

Page 4

... ML12502 Page www.lansdale.com LANSDALE Semiconductor, Inc. Issue 0 ...

Page 5

... ML12502 Signal B Input (Pin 8) Tektronix 454 and 568 Oscilloscopes Hewlett Packard 651A and 3300B 100 kHz to 100 MHz @ 30 mVpp Notes: Test 1 – Adjust potentiometer for carrier null 100 kHz. Test 2 – Connect pins 5 and 6 to Gnd. Page Figure 4. Carrier Feedthrough Test Circuits ...

Page 6

... ML12502 Figure 5. Carrier Feedthrough versus Frequency (Test 1) 5.0 4.0 3.0 2.0 1.0 0.0 0.1 1 CARRIER FREQUENCY (MHz) Hewlett Packard 3406A Sampling Voltmeter Hewlett Packard TEE 11536A Hewlett Packard 651A and 3300B 100 kHz to 400 MHz @ 30 mV RMS. Hewlett Packard 651A 10 kHz @ 150 mV R.M.S. Figure 8. Carrier Suppression versus Frequency ...

Page 7

... ML12502 1.0 µf 1.0 µf 1.0 µf 1.0 µf Figure 12. Output Offset Current versus Temperature +100 +50 TEST 1 0.0 –50 TEST 2 –100 –55 – AMBIENT TEMPERATURE (°C) Page Figure 10. Carrier Suppression versus Temperature –10 –20 – MHz @ 30 mv rms KHz @ 150 mv rms – ...

Page 8

... All operating parameters, including “Typicals” must be validated for each customer application by the cus- tomer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc. Page OUTLINE DIMENSIONS CERDIP (ML12502/BCA) CASE 632 www.lansdale.com LANSDALE Semiconductor, Inc. Issue 0 ...

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