uaa3515a NXP Semiconductors, uaa3515a Datasheet - Page 9

• Manufacturer Part Number: uaa3515a
• Description: 900 Mhz Analog Cordless Telephone Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
7.1.3
The control bit values for selection of each mode and typical current consumption for the modes are shown in Table 3.
When clock out is activated there is an extra power demand proportional to the programmed output level (see Table 4
for examples). When bit Xtal high = 0 (oscillator is in low current consumption mode), the crystal in use must have losses
less than 20
Table 3 Typical current consumption
V
Notes
1. Voltage doubler and clock output buffer disabled.
2. Voltage doubler enabled, clock output buffer disabled.
Table 4 Examples of additional current consumption
V
7.2
The FM receiver (see Fig.3) has a single frequency conversion architecture with integrated image rejection mixer that
makes an external RF filter unnecessary. The Side Band Select (SBS) feature allows choice of frequency for RXLO to
be in or out of the ISM band allowing use of the same IC type for both base station and handset. IF channel filtering
(a compromise between price and performance) can be implemented by simply using two or three external 10.7 MHz
filters. The integrated FM PLL demodulator with limiter decreases significantly the number of pins and external
components required.
2002 Sep 09
Active mode
RX mode
Inactive mode
POWER OPERATING MODE
CC
CC
900 MHz analog cordless telephone IC
= 3.3 V; T
= 3.3 V; T
1, 2, 2.5, 4 or 128
FM receiver
DIVIDER RATIO
C
URRENT CONSUMPTION
amb
amb
off
to ensure oscillator start-up.
= 25 C; f
= 25 C; f
(i)xtal
(i)xtal
= 10.24 MHz.
xtal active = 0; V
xtal active = 1; V
xtal active = 1; V
xtal active = 1; V
xtal active = 1; V
= 10.24 MHz; C
CURRENT CONSUMPTION ADDITIONAL TO TYPICAL VALUE
CLKO level = 0
L(CLKOUT)
REG
REG
REG
REG
REG
770 A
CONDITIONS
0
enable = 0; note 1
enable = 0; Xtal high = 0; note 1
enable = 0; Xtal high = 1; note 1
enable = 1; Xtal high = 1; note 1
enable = 1; Xtal high = 0; note 2
= 14 pF.
9
CLKO level = 1
TYPICAL CURRENT
530 A
CONSUMPTION
0
Product specification
<10 A
230 A
330 A
550 A
690 A
UAA3515A
76 mA
58 mA