LT5502EGN Linear Technology, LT5502EGN Datasheet - Page 12

• Manufacturer Part Number: LT5502EGN
• Description: IC DEMOD IF QUADRATURE 24-SSOP
• Manufacturer: Linear Technology

Specifications of LT5502EGN

• Function: Demodulator
• Lo Frequency: 140MHz ~ 800MHz
• Rf Frequency: 70MHz ~ 400MHz
• Noise Figure: 4dB
• Current - Supply: 32mA
• Voltage - Supply: 1.8 V ~ 5.25 V
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Gain: -
• P1db: -

LT5502
TYPICAL APPLICATIO
12
2.4GHz TO
RX INPUT:
2.5GHz
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
SYNTHESIZER
FRONT END
MAIN
RX
1st LO,
2.12GHz
TO 2.22GHz
280MHz IF
SAW BP
FILTER
Example: 2.4GHz to 2.5GHz Receiver Application (RX IF = 280MHz)
3.3pF
U
120nH
22nF
3.3pF
6
7
LIMITER
LT5502
1
RSSI
12
15
13
LIMITER
1.8pF
SYNTHESIZER
2
IF
0.1 F
3,5,8,9,
14,20,21
Q MIXER
I MIXER
BUFFER
560MHz
2nd LO,
LO
2.7pF
1nF
30nH
0
90
100pF
18
V
CC
f/2
4,16,17,22
200
19
2V
LPF
LPF
1nF
30nH
BUFFER
BUFFER
2.7pF
STBY
EN
LINEAR TECHNOLOGY CORPORATION 2001
1
2
24
23
11
10
5502i LT/TP 0101 2K • PRINTED IN USA
OUTPUTS
5502 TA02
OUTPUTS
I
Q
PROCESSOR
BASEBAND
A/D
A/D