SL610 Zarlink Semiconductor Inc, SL610 Datasheet - Page 4

• Manufacturer Part Number: SL610
• Description: RF/IF AMPLIFIER
• Manufacturer: Zarlink Semiconductor Inc

SL610/611 & 612
APPLICATION NOTES
Input circuit
pins 5 and 6 connected together and with the input connected
via a capacitor as shown in Fig.2.
100MHz (SL610C, SL611C only) and is shown in Fig.3. The
source and inductive is should be shunted by a 1k resistor to
prevent oscillation.
Fig.4.
Output circuit
output impedance at certain frequencies as shown in Fig.5.
resistor should be conncted in series with the output.
ELECTRICAL CHARACTERISTICS
Supply current
Voltage gain
Cut-off frequency (-3dB)
Max. output signal (max. AGC)
Max.input signal (max. AGC)
AGC range
AGC current
The SL610C, SL611C and SL612C are normally used with
The input impedance is negative between 30MHz and
An alternative circuit with improved noise figure is shown in
The output stage is an emitter follower and has a negative
To prevent oscillation when the load is capacitive a 47
These characteristics are guaranteed over the following conditions (unless otherwise stated)
Characteristics
Supply voltage VCC: 6V
Ambient temperature: 22 C
Test frequency: SL610C 30MHz
Fig.4 Alternative input circuit
5
6
SL611C 30MHz
SL612C 1.75MHz
4
8
SL610C
SL611C
SL612C
SL610C
SL611C
SL612C
SL610C
SL611C
SL612C
SL610C
SL611C
SL612C
Circuit
3
2 C
Min.
18
24
32
85
50
10
40
40
60
Value
Typ.
0.15
120
250
3.3
1.0
15
15
20
26
34
80
15
50
50
70
AGC
than 2V the voltage gain is normal. As the AGC voltage is
increased there is a reduction in gain as shown in Fig.6. This
reduction varies with temperature.
When pin 7 is open circuit or connected to a voltage less
Max.
0.6
20
20
22
28
36
5
Fig.5 Typical output impedance with s/c input (G22)
mV rms
V rms
Units
MHz
MHz
MHz
mA
mA
mA
mA
dB
dB
dB
dB
dB
dB
No signal, Pin 3 open circuit
R
R
T
RL = 150 (SL610C/611C)
RL = 1.2k
Current into pin 7 at 5.1V
amb
Pin 7 0V to 5.1V
S
L
= 22 C
= 50
= 22 C
Conditions
(SL612C)