U2790B-BFP
| Model | U2790B-BFP |
| Description | Modulator, Quadraphase, 0MHz Min, 250MHz Max, SO-16, 16 PIN |
| PDF file | Total 12 pages (File size: 183K) |
| Chip Manufacturer | TEMIC |
U2790B
1000-MHz Quadrature Modulator
Description
The U2790B is a 1000-MHz quadrature modulator using
TEMIC Semiconductors’ advanced UHF process. It
features a frequency range from 100 MHz up to
1000 MHz, low current consumption, and single-ended
RF and LO ports. Adjustment-free application makes the
direct converter suitable for all digital radio systems up
to 1000 MHz, e.g., GSM, ADC, JDC.
Electrostatic sensitive device.
Observe precautions for handling.
Features
D
Supply voltage 5 V (typical)
D
Very low power consumption: 150 mW (typical) for
D
D
D
D
D
D
D
–1dBm output level
Very good sideband suppression by means of duty
cycle regeneration of the LO input signal
Phase control loop for precise 90° phase shifting
Power-down mode
Low LO input level: –10 dBm (typical)
50-
W
single-ended LO and RF port
LO frequency from 100 MHz to 1 GHz
SO16 package
Benefits
D
No external components required for phase shifting
D
Adjustment free, hence saves time
D
Only three external components necesary, this results
in cost and board space saving
Block Diagram
S
PD
BB
Ai
BB
Ai
8
7
6
PD
1
Power
V
S
down 5,4
LO
i
Ph
adj
BB
Bi
BB
Bi
12
15
16
9
10
Duty cycle
regenerator
Frequency
doubler
0
°
90
°
90
°
/ control
loop
∑
RF
O
3
2,11,13,14
GND
Figure 1. Block diagram
93 7757 e
Ordering Information
Extended Type Number
U2790B-BFP
U2790B-BFPG3
Package
SO16
SO16
Remarks
Tube
Taped and reeled
Rev. A3, 20-May-99
1 (12)
