uaa3515a NXP Semiconductors, uaa3515a Datasheet - Page 20

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

Philips Semiconductors
Table 7 Data register content description
Notes
1. Sideband select enables the user to have the RX local oscillator in or out of the ISM band and to use the same IC in
2. A 4.5 dB insertion loss in the filter is assumed.
3. The clock output signal will be AC-coupled with the XTALI pin of the microcontroller. The external resonator from the
4. In inactive mode, the crystal oscillator is a major contributor to the full current consumption. When Xtal high = 0, the
5. Depending on the SBS-bit and the protocol chosen, the data may be inverted between the base and handset data
6. Minimum supply voltage for the IC is 2.9 V which limits the voltage swing on both charge pumps to approximately
2002 Sep 09
SBS
SFS
CLKO level
Xtal active
Xtal high
DATA phase
ALC disable
Hard limiter enable
RX mute
TX mute
V
Doubler enable
Earpiece enable
REG
900 MHz analog cordless telephone IC
DATA REGISTER NAME
both handset and base.
microcontroller can be removed. Caution needs to be taken that no radiation is present on the PCB
current mode can be programmed to save current and in inactive mode this comes to full current consumption at
230 A (see Section 7.1.3). When Xtal high = 1, the crystal oscillator current is increased by 100 A.
transmission.
2.3 V. With the voltage doubler or with an external high supply voltage on pin V
can be used to enhance the tuning range of the VCOs variable capacitance diodes. To save current in inactive mode,
voltage doubler clock is the same as CLKO clock (can be programmed to
clock is XTALI divided by two.
(1)
enable
(4)
(3)
(5)
(6)
BIT
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
sideband select: (LO + IF) frequency is rejected
sideband select: (LO
second filter select: the second IF filter is selected
second filter select: the second IF filter is deselected; note 2
clock output signal is regulated with respect to V
clock output signal is regulated with respect to V
crystal oscillator is active
crystal oscillator is disable
oscillator is in normal operation
oscillator is in low current consumption mode
DATA signal is inverted
DATA signal is not inverted (inverter bypassed)
ALC disabled
normal operation
hard limiter enabled
hard limiter disabled
RX channel muted
normal operation
TX channel muted
normal operation
V
V
voltage doubler is enabled
voltage doubler is disabled
earpiece enabled (can be used in RX mode for specific features)
earpiece disabled
REG
REG
enabled
disabled and tied to V
20
IF) frequency is rejected
CC
DESCRIPTION
XTAL
-------------- -
(in inactive mode)
128
); in other modes the voltage doubler
CC(CP)
, the extra voltage availability
REG
CC
; V
Product specification
; V
UAA3515A
CLKOUT(p-p)
CLKOUT(p-p)
= 1.4 V
= 1 V