SA602AN NXP Semiconductors, SA602AN Datasheet - Page 3

• Manufacturer Part Number: SA602AN
• Description: IC, DOUBLE BALANCED MIXER, 200MHZ, 8-DIP
• Manufacturer: NXP Semiconductors

Specifications of SA602AN

• Frequency Range: 200MHz
• Supply Voltage Range: 4.5V To 8V
• Rf Ic Case Style: DIP
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Termination Type: SMD
• Rf Type: Cellular, HF, LAN, VHF
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Philips Semiconductors
BLOCK DIAGRAM
AC/DC ELECTRICAL CHARACTERISTICS
V
DESCRIPTION OF OPERATION
The SA602A is a Gilbert cell, an oscillator/buffer, and a temperature
compensated bias network as shown in the equivalent circuit. The
Gilbert cell is a differential amplifier (Pins 1 and 2) which drives a
balanced switching cell. The differential input stage provides gain
and determines the noise figure and signal handling performance of
the system.
The SA602A is designed for optimum low power performance.
When used with the SA604 as a 45MHz cellular radio second IF and
demodulator, the SA602A is capable of receiving -119dBm signals
with a 12dB S/N ratio. Third-order intercept is typically -13dBm (that
is approximately +5dBm output intercept because of the RF gain).
The system designer must be cognizant of this large signal
limitation. When designing LANs or other closed systems where
transmission levels are high, and small-signal or signal-to-noise
issues are not critical, the input to the SA602A should be
appropriately scaled.
1997 Nov 07
SYMBOL
CC
Double-balanced mixer and oscillator
f
V
OSC
R
C
= +6V, T
f
CC
IN
IN
IN
Power supply voltage range
DC current drain
Input signal frequency
Oscillator frequency
Noise figure at 45MHz
Third-order intercept point
Conversion gain at 45MHz
RF input resistance
RF input capacitance
Mixer output resistance
A
= 25 C; unless otherwise stated.
PARAMETER
REGULATOR
VOLTAGE
8
1
V CC
Figure 2. Block Diagram
7
2
OSCILLATOR
RF
IN
3
TEST CONDITIONS
= -45dBm: f
GROUND
Besides excellent low power performance well into VHF, the
SA602A is designed to be flexible. The input, RF mixer output and
oscillator ports can support a variety of configurations provided the
designer understands certain constraints, which will be explained
here.
The RF inputs (Pins 1 and 2) are biased internally. They are
symmetrical. The equivalent AC input impedance is approximately
1.5k || 3pF through 50MHz. Pins 1 and 2 can be used
interchangeably, but they should not be DC biased externally.
Figure 5 shows three typical input configurations.
The mixer outputs (Pins 4 and 5) are also internally biased. Each
output is connected to the internal positive supply by a 1.5k
resistor. This permits direct output termination yet allows for
balanced output as well. Figure 6 shows three single ended output
configurations and a balanced output.
6
3
(Pin 4 or 5)
f
2
1
= 45.06MHz
= 45.0MHz
5
4
MIN
4.5
1.5
14
SA602A
LIMITS
TYP
500
200
2.4
5.0
-13
1.5
17
3
Product specification
SA602A
MAX
-15
8.0
2.8
5.5
3.5
SR00069
UNITS
MHz
MHz
dBm
mA
dB
dB
k
k
pF
V