SL6440 Plessey Semiconductors, SL6440 Datasheet - Page 2

• Manufacturer Part Number: SL6440
• Description: High Level Mixer
• Manufacturer: Plessey Semiconductors

radio systems up to 150MHz. A special feature of the circuit
allows external selection of the DC operating conditions by
means of a resistor connected between pin 11 (bias) and Vcc
When biased for a supply current of 50mA the SL6440 offers
a 3rd order intermodulation intercept point of typically
+30dBm, a value previously unobtainable with integrated
circuits. This makes the device suitable for many applications
where diode ring mixers had previously been used and offers
the advantages of a voltage gain, low local oscillator drive
requirement and superior isolation.
FEATURES
APPLICATIONS
ORDERING INFORMATION
SL6440 A DG
SL6440 C DP
NOTE Supply current in Pin 3 is equal to that in Pin 14 and is equal to I
ELECTRICAL CHARACTERISTICS
Signal frequency 3dB point
Oscillator frequency 3dB point
3rd order input intercept point
Third order intermodulation distortion
Second order intermodulation distortion
1dB compression point
Noise figure
Conversion gain
Carrier leak to signal input
Level of carrier at IF output
Supply current
Supply current (total from V
Local oscillator input
Local oscillator input impedance
Signal input impedance
The SL6440 is a double balanced mixer intended for use in
Test condltions (unless otherwise stated):
+30dBm Input Intercept Point
+15dBm Compression Point (1dB)
Programmable Performance
Full Military Temperature Range (SL644A)
Mixers in Radio Transceivers
Phase Comparators
Modulators
V
Local oscillator input level = 0dBm; Test circuit Fig.2.
CC
Characteristic
1 = 12V; V
CC
2 = 10V; I
CC
1 & V
P
CC
= 25mA; T
2)
Min.
100
100
100
-40
HIGH LEVEL MIXER
amb
Value
= -55 C to +125 C (SL64440A), -30 C to +85 C (SL6440C)
SL6440
150
150
+30
-25
1000
Typ.
-60
-75
250
1.5
500
15
11
-1
7
60
Max.
500
ABSOLUTE MAXIMUM RATINGS
Supply voltage and output pins
Maximum power dissipation
(Derate above 25 C: 8mW/ C)
Storage temperature range
Programming current into pin 11
THERMAL CHARACTERISTICS
Thermal resistance: 0
Time constant: Junction-Ambient
Maximum chip temperature
mV rms
Units
MHz
MHz
dBm
dBm
dBm
P
mA
mA
k
dB
dB
dB
dB
dB
See over. V
Fig.1 Pin connections - top view
0
JA
Two 0dBm input
Signals
V
V
Fig.8 test circuit
50
Test circuit Fig.8
See applications information
I
Single ended
Differential
pin
JC
I
P
P
CC
CC
11 3V
= 0
= 35mA
1 = 15V V
1 = 12V V
load Fig.2
be
Conditions
2.1V.
CC
CC
2 = 12V
2 = 10V
-65 C to +150 C
DG16
DP16
1200mW
125 C/W
1.9 mins
150 C
50mA
15V