gsm Baseband Power Management Functions Four LDOs Optimized for Specific gsm Subsystems Charges Back-Up Capacitor for Real-Time Clock Charge...dcs/pcs Handsets TeleMatic Systems ICO/Iridium Terminals
gsm Power Management System ADP3404
FUN...
Description
gsm Power Management System 80-Lead Mixed Signal DSP with 7, 10-bit Analog Input Channels 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
gsm Baseband Power Management Six LDOs Optimized for Specific gsm Subsystems Li-Ion and NiMH Battery Charge Function Optimized for the AD20msp430 Baseband Chipset APPLICATIONS gsm/dcs/pcs/CDMA Handsets
gsm Power Management System ADP3408...
Description
0.3-10.0V; gsm power management system. For gsm/dcs/pcs/CDMA handsets Replaced by BQ29415 : Voltage Protection for 2, 3, or 4 Cell LiIon Batteries (2nd Lev Protection) 8-SM8 -25 to 85
...d digital cellular systems e.g. gsm, PCN (dcs 1800) and pcs systems.
s s s s
Features
Operation range 2.7 to 5.0 V Low operating current consumption Programmable power down modes High input sensitivity and high input frequencies: PLL...
...d digital cellular systems e.g. gsm, PCN (dcs 1800) and pcs systems. Operation range 2.7 to 5.0 V Ultra low phase noise Ultra low spurious Faster lock-in times New bipolar power modes Dividing ratios: A counters: PLL1: 0 to 63 PLL2: 0 to 15...
... Technology High Efficiency 55% gsm High Efficiency 50% dcs High Efficiency 45% pcs Low Leakage Current ( <10A) SMT Module Package Small Foot Print (9.2mm X 11.6mm) Low Profile (1.55 mm) 50 Input and Output Matching Minimum Number of Exter...
...re no additional components.
gsm IN
gsm OUT Bias controller dcs OUT
Figure 1: Block Diagram
VAPC VBAND
dcs IN
AWT6107
Absolute Minimum and Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permane...
Description
Egsm/dcs Dual Band 3.5V GPRS Power Amplifier Module
gsm/dcs/pcs power amplifier
Preliminary specification File under Integrated Circuits, IC17 2000 Nov 28
Philips Semiconductors
Preliminary specification
gsm/dcs/pcs power amplifier
FEATURES * Operates at 3.6 V battery supply volta...