Regulators; Receiver; Damps800 Rx - Nokia NSW-5 Series Service Manual

NSW-5
System Module UT5U
800 MHz
Ext.
Standby
[mA]
VR1 9.0 / 0.0
VR2 16.0 / 0.0
VR3 0.0
VR4 11.6 / 0.0
VR5 0.0
VR6 2.0 / 0.1
VR7 0.0
VR8 19.0 / 0.0
VR9 0.0
VR10 0.0
VR11 0.0
VR12 0.0
V5V 5.0 / 0.0
Total 62.6 / 0.1
* NOTES:
''' Mean value (ON/OFF=8/20ms), peak current 15.0 mA when AGC2=1

Regulators

Most of the RF voltage regulation functions are located in the regulator IC
CCONT. It has 8 separate regulators with power on/off controls (see fig
2). Regulator VR6 is used only for the COBBA_D IC and the rest of the
regulators VR1–VR7 are reserved for the RF blocks. VR7_bias controls
the 800MHz PA bias to boost better efficiency in analog mode and at
power levels 6 to 10 in digital mode. V5V voltage is used for the PLL
charge pump supply. In dual band phone there is a need for 5 additional
regulators, which are integrated in Penta regulator IC.

Receiver

DAMPS800 RX

The receiver is a double conversion receiver. Most of the RX functions
are integrated in two ICs, namely receiver front end and EROTUS. Re-
ceiver front end contains a LNA and the 1st mixer. Analog and digital IF–
parts are integrated in the EROTUS.
Page 34
800 MHz 800 MHz
Analog Analog
Control Traffic
Channel Channel
[mA] [mA]
9.0 9.0
16.0 16.0
0.0 23.0
11.6 11.6
0.0 37.0
2.0 32.0 ***
0.0 58.0
19.0 19.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
5.0 5.0
62.6 210.6
Mean value (ON/OFF=8/20ms), peak current 32.0 mA
** Mean value (ON/OFF=7/20ms), peak current 37.0 mA
*** Cobba_D mean current consumption estimated to be 30 mA
' Mean value (ON/OFF=6.6/20ms), peak current 180.0 mA
'' Mean value (ON/OFF=8/20ms), peak current 10.0 mA
^ Mean value (ON/OFF=6.6/20ms), peak current 68.0 mA
^^ Mean value (ON/OFF=6.6/20ms), peak current 39.0 mA
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
800 MHz 800 MHz 1900 MHz
Digital Digital
Control Traffic
Channel Channel Channel
[mA] [mA]
9.0 / 0.0 9.0 19.0 / 0.0
16.0 / 0.0 16.0
0.0 13.0
32 / 0.0 12.8*
0.0 13.0 **
2.0 / 0.1 32.0 ***
0.0 19.2 '
19.0 / 0.0 7.6 ''
0.0 0.0 30.0 / 0.0
0.0 0.0 10.0 / 0.0
0.0 0.0
0.0 0.0
5.0 / 0.0 5.0
83.0 / 0.1 127.6 98.0 / 0.1
1900 MHz
Digital Digital
Control Traffic
Channel
[mA] [mA]
19.0
0.0 0.0
0.0 8.0
32 / 0.0 12.8*
0.0 13.0 **
2.0 / 0.1 32.0 ***
0.0 0.0
0.0 0.0
12.0 '''
10.0
0.0 22.5^
0.0 12.9^^
5.0 / 0.0 5.0
147.2
Issue 1 10/00