®
MPY600
FPO
Wide Bandwidth
SIGNAL MULTIPLIER
FEATURES
APPLICATIONS
● WIDE BANDWIDTH:
75MHz — Current Output
30MHz — Voltage Output
● MODULATOR/DEMODULATOR
● VIDEO SIGNAL PROCESSING
● CRT GEOMETRY CORRECTION
● CRT FOCUS CORRECTION
● LOW NOISE
● LOW FEEDTHROUGH: –60dB (5MHz)
● GROUND-REFERRED OUTPUT
● LOW OFFSET VOLTAGE
● VOLTAGE-CONTROLLED CIRCUITS
DESCRIPTION
The MPY600 is a wide-bandwidth four-quadrant
signal multiplier. Its output voltage is equal to the
algebraic product of the X and Y input voltages. For
signals up to 30MHz, the on-board output op amp
provides the complete multiplication function with a
low-impedance voltage output. Differential current
outputs extend multiplier bandwidth to 75MHz.
X1
X2
+
–
Multiplier
Core
IP
IN
The MPY600 offers improved performance compared
to common semiconductor modulator or multiplier
circuits. It can be used for both two-quadrant (voltage-
controlled amplifier) and four-quadrant (double-
balanced) applications. While previous devices
required cumbersome circuitry for trimming, balance
and level-shifting, the MPY600 requires no external
components. A single external resistor can be used to
program the conversion gain for optimum spurious-
free dynamic range. When used as a modulator, carrier
feedthrough measures –60dB at 5MHz.
+
–
Y1
Y2
RY
RY
∆ IO = (X1 – X2)(Y1 – Y2 ) mA
+
VO
–
V Reference
and
Bias
Z1
Z2
+
–
+VS
–VS
Differential X, Y and Z inputs can be connected in a
variety of useful configurations, including squarer,
divider, and square-rooter circuits. The MPY600 is
available in 16-pin plastic DIP, specified for the indus-
trial temperature range.
(X1 – X 2 ) (Y1 – Y2)
2V
VO = A
+ Z 2 – Z1
[
]
International Airport Industrial Park
•
Mailing Address: PO Box 11400
Cable: BBRCORP
•
Tucson, AZ 85734
•
Street Address: 6730 S. Tucson Blvd.
• Tucson, AZ 85706
Tel: (520) 746-1111 Twx: 910-952-1111
•
•
•
Telex: 066-6491
•
FAX: (520) 889-1510
•
Immediate Product Info: (800) 548-6132
©1989 Burr-Brown Corporation
PDS-1019C
Printed in U.S.A. October, 1993