SA5219D NXP Semiconductors, SA5219D Datasheet - Page 7

• Manufacturer Part Number: SA5219D
• Manufacturer: NXP Semiconductors

Specifications of SA5219D

• Number Of Channels: 1
• Supply Current: 50@5VmA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 7V
• Power Dissipation: 1.1W
• Package Type: SO
• Mounting: Surface Mount
• Pin Count: 16
• Noise Figure (typ): 9.3@50MHzdB
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
1997 Nov 07
Wideband variable gain amplifier
SOURCE
SOURCE
SOURCE
50
50
50
SOURCE
50
Figure 11. User-Programmable Fixed Gain Block
Figure 8. Narrowband Gain Optimization
Figure 9. Simple Amplifier Configuration
Figure 10. Unterminated Configuration
4:1 TURNS RATIO
LC TUNED
TRANSFORMER
50
7
V
BG
+5V
+5V
+1V
+5V
+1V
+5V
+1V
5219
5219
5219
5219
V
V
V
AGC
AGC
AGC
R
V
1
AGC
R
2
50
50
50
50
OUTPUT
OUTPUT
OUTPUT
OUTPUT
50
50
50
50
and is in units of Volts, for V
This circuit will exhibit approximate-
ly an 8dB noise figure and 25dB gain.
The noise figure of this configuration
will be approximately 15dB.
With the 50
nated, the noise figure is 9dB.
where V
Gain = 19dB + 20log
AGC
=
source left untermi-
Product specification
R
SA5219
1
R
2
10
SR00282
SR00280
SR00281
R
AGC
V
2
AGC
SR00283
V
1V
BG