UAA2077CM, UAA2077CM/C1, UAA2077D Selling Leads, Datasheet
MFG:SSOP-20P Package Cooled:PHILIPS D/C:00+
UAA2077CM, UAA2077CM/C1, UAA2077D Datasheet download
Part Number: UAA2077CM
MFG: SSOP-20P
Package Cooled: PHILIPS
D/C: 00+
UAA2077CM, UAA2077CM/C1, UAA2077D
- Table of contents:
Info of UAA2077CM
Info of UAA2077CM/C1
Info of UAA2077D
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About UAA2077CM
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Datasheet: UAA2077CM
File Size: 132769 KB
Manufacturer: PHILIPS [Philips Semiconductors]
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About UAA1016B
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Datasheet: UAA1016B
File Size: 348095 KB
Manufacturer: MOTOROLA [Motorola, Inc]
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About UAA1016B
PDF/DataSheet Download
Datasheet: UAA1016B
File Size: 348095 KB
Manufacturer: MOTOROLA [Motorola, Inc]
Download : Click here to Download
UAA2077CM General Description
UAA2077CM contains both a receiver front-end and a high frequency transmit mixer intended to be used in mobile telephones. Designed in an advanced BiCMOS process it combines high performance with low power consumption and a high degree of integration, thus reducing external component costs and total front-end size.
The main advantage of the UAA2077CM is its ability to provide over 30 dB of image rejection. Consequently, the image filter between the LNA and the mixer is suppressed.
Image rejection is achieved in the internal architecture by two RF mixers in quadrature and two all-pass filters in I and Q IF channels that phase shift the IF by 45° and 135° respectively. The two phase shifted IFs are recombined
and buffered to furnish the IF output signal.
Signals presented at the RF input at LO + IF frequency are rejected through this signal processing while signals at LO - IF frequency can form the IF signal.
The receiver section consists of a low-noise amplifier that drives a quadrature mixer pair. The IF amplifier has on-chip 45° and 135° phase shifting and a combining network for image rejection. The IF driver has differential open-collector type outputs.
The LO part consists of an internal all-pass type phase shifter to provide quadrature LO signals to the receive mixers. The all-pass filters outputs are buffered before being fed to the receive mixers.
The transmit section consists of a low-noise amplifier, and a down-conversion mixer. In the transmit mode, an internal
LO buffer is used to drive the transmit IF down-conversion mixer.All RF and IF inputs or outputs are balanced.
Pins RXON, TXON and SXON allow to control the different power-down modes. A synthesizer-on (SX) mode enables LO buffers independent of the other circuits. When pin SXON is HIGH, all internal buffers on the LO path of the circuit are turned on, thus minimizing LO pulling when remainder of the receive or transmit chain is powered up.Special care has been taken for fast power-up switching.
UAA2077CM Maximum Ratings
|
PARAMETER |
SYMBOL |
MIN. |
TYP. |
MAX. |
UNIT |
| supply voltage |
VCC |
3.6 |
3.75 |
5.3 |
V |
| receive supply current |
ICC(RX) |
27.5 |
36 |
44.5 |
mA |
| transmit supply current |
ICC(TX) |
11 |
14 |
17.5 |
mA |
| supply current in power-down |
ICC(PD) |
- |
- |
50 |
A |
| operating ambient temperature |
Tamb |
-30 |
+25 |
+75 |
°C |
UAA2077CM Features
· Low-noise, wide dynamic range amplifier
· Very low noise figure
· Dual balanced mixer for over 30 dB on-chip image rejection
· IF I/Q combiner at 188 MHz
· On-chip quadrature network
· Down-conversion mixer for closed-loop transmitters
· Independent TX/RX fast ON/OFF power-down modes
· Very small outline packaging
· Very small application (no image filter).
· Very low noise figure
· Dual balanced mixer for over 30 dB on-chip image rejection
· IF I/Q combiner at 188 MHz
· On-chip quadrature network
· Down-conversion mixer for closed-loop transmitters
· Independent TX/RX fast ON/OFF power-down modes
· Very small outline packaging
· Very small application (no image filter).
UAA2077CM Typical Application
· High frequency front-end for DCS1800/PCS1900 hand-portable equipment
· Compact digital mobile communication equipment
· TDMA receivers e.g. RF-LANS.
· Compact digital mobile communication equipment
· TDMA receivers e.g. RF-LANS.
UAA2077CM Connection Diagram
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