U2893B-AFSG3, U2894B, U2894BAFS Selling Leads, Datasheet
MFG:TSSOP-28P Package Cooled:1800 D/C:06+
U2893B-AFSG3, U2894B, U2894BAFS Datasheet download
Part Number: U2893B-AFSG3
MFG: TSSOP-28P
Package Cooled: 1800
D/C: 06+
U2893B-AFSG3, U2894B, U2894BAFS
- Table of contents:
Info of U2893B-AFSG3
Info of U2894B
Info of U2894BAFS
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About U2825DW
PDF/DataSheet Download
Datasheet: U2825DW
File Size: 936503 KB
Manufacturer: TI [Texas Instruments]
Download : Click here to Download
About U2894B
PDF/DataSheet Download
Datasheet: U2894B
File Size: 821608 KB
Manufacturer: TEMIC [TEMIC Semiconductors]
Download : Click here to Download
About U2825DW
PDF/DataSheet Download
Datasheet: U2825DW
File Size: 936503 KB
Manufacturer: TI [Texas Instruments]
Download : Click here to Download
U2894B General Description
The U2894B is a monolithic integrated circuit. It is realized using TEMIC's advanced silicon bipolar UHF5S technology. The device integrates a mixer, an I/Q modulator, a phase-frequency detector (PFD) with two synchronous programmable dividers, and a charge pump. The U2894B is designed for cellular phones such as GSM900, DCS1800, and PCS1900, applying a transmitter architecture at which the VCO operates at theTX output frequency. No duplexer is needed since the outof- band noise is very low. The U2894B exhibits low power consumption. Broadband operation gives you high flexibility for multi-band frequency mappings. The IC is available in a shrinked small-outline 28-pin packag (SSO28).
The U2893B offers the same functionality with other divider ratios.
U2894B Maximum Ratings
|
Parameters |
Symbol |
Value |
Unit |
| Supply voltage VS1, VS2, VS3 |
VVS# |
VVSP |
V |
| Supply voltage charge pump VSP |
VVSP |
5.5 |
V |
| Voltage at any input |
VVi# |
0.5 VVS+0.5 5.5 |
V |
| Current at any input /output pin except CPC | |II#| |IO#| |
2 |
mA |
| CPC output currents |
|ICPC| |
5 |
mA |
| Storage temperature |
Tstg |
40 to +125 |
|
| Ambient temperature |
Tamb |
-20 to +85 |
U2894B Features
· Supply voltage range 2.7 V to 5.5 V
· Current consumption 50 mA
· Power-down functions
· High-speed PFD and charge pump (CP)
· Small CP saturation voltages (0.5/0.6 V)
· Programmable dividers and CP polarity
· Low-current standby mode
U2894B Connection Diagram
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