U2761B
| Model | U2761B |
| Description | DECT RF / IF IC |
| PDF file | Total 12 pages (File size: 430K) |
| Chip Manufacturer | TEMIC |
U2761B
DECT RF / IF IC
Description
The U2761B is an integrated circuit manufactured in
TEMIC’s UHF5S technology, designed for DECT
application. It contains rejection mixer, IF amplifier,
FM demodulator, baseband filter, RSSI, TX preamplifier
and power-ramping generator for power amplifier.
Features
D
Supply-voltage range 2.7 to 5.5 V
D
Low current consumption
D
Few external components
D
On-chip baseband filter
D
LO switch and TX preamplifier
D
Ramp-signal generator for power amplifier
Block Diagram
QUAD_TANK2
IF_TANK1
IF_TANK2
QUAD_TANK1
DEMOD_OUT
VS1
VS2
IF_IN1
IF_IN2
IF amp 1
IF amp 2
Demodulator
Bandgap
MIXER_IN1
MIXER_IN2
IR mixer
T/R switch
TX driver
TX_RF_OUT
Ramp
generator
Control
logic
+
–
OpAmp
OP_OUT
MIXER_OUT1
RAMP_SET
TX_ON
MIXER_OUT2
RAMP_OUT
LO_IN2
RX_ON
OP_N
LO_IN1
OP_P
14657
Figure 1. Block diagram
Ordering Information
Extended Type Number
U2761B
Package
SSO28
Remarks
TEMIC Semiconductor
Rev. A4, 10-Mar-98
1 (11)
Preliminary Information
Related PDFs
| Model | Description | Manufacturer | Operation |
|---|---|---|---|
 U2761B-MFSY
|
Baseband Circuit, Bipolar, PDSO28, SSO-28 | TEMIC | Preview |
