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參數資料
| 型號： | UMA1015AM |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | XO, clock |
| 英文描述： | Low-power dual frequency synthesizer for radio communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO20 |
| 文件頁數： | 2/24頁 |
| 文件大小： | 159K |
| 代理商： | UMA1015AM |
1997 Sep 03
2
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015AM
FEATURES
Two fully programmable RF dividers up to 1.1 GHz
Fully programmable reference divider up to 35 MHz
2 : 1 or 1 : 1 ratio of selectable reference frequencies
Fast three-line serial bus interface
Adjustable phase comparator gain
Programmable out-of-lock indication for both loops
On-chip voltage doubler
Low current consumption from 3 V supply
Separate power-down mode for each synthesizer
Up to 4 open-drain output ports
Crystal input frequency signal inverted and buffered
output on separate pin.
APPLICATIONS
Cordless telephone
Hand-held mobile radio.
GENERAL DESCRIPTION
The UMA1015AM is a low-power dual frequency
synthesizer for radio communications which operates in
the 50 to 1100 MHz frequency range. Each synthesizer
consists of a fully programmable main divider, a phase and
frequency detector and a charge pump. There is a fully
programmable reference divider common to both
synthesizers which operates up to 35 MHz.
The device is programmed via a 3-wire serial bus which
operates up to 10 MHz. The charge pump currents (gains)
are fixed by an external resistance at pin 20 (I
SET
).
The BiCMOS device is designed to operate from 2.7 V
(3 NiCd cells) to 5.5 V at low current. Digital supplies V
DD1
and V
DD2
must be at the same potential. The charge pump
supply (V
CC
) can be provided by an external source or
on-chip voltage doubler. V
CC
must be equal to or higher
than V
DD1
.
Each synthesizer can be powered-down independently via
the serial bus to save current. It is also possible to
power-down the device via the HPD input (pin 5).
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DD1
, V
DD2
V
CC
digital supply voltage
charge pump supply voltage
V
DD1
= V
DD2
external supply; doubler
disabled; V
CC
≥
V
DD
doubler enabled
2.7
2.7
5.5
6.0
V
V
V
CCvd
charge pump supply from
voltage doubler
operating supply current
2V
DD1
0.6
6.0
V
I
DD1
+ I
DD2
+ I
CC
both synthesizers ON; doubler
disabled; V
DD1
= V
DD2
= 3 V
doubler disabled;
V
DD1
= V
DD2
= 3 V
doubler enabled;
V
DD1
= V
DD2
= 3 V
8.7
mA
I
DDpd
+ I
CCpd
total current in power-down
mode
current in power-down mode
from supply V
DD1
and V
DD2
RF input frequency for each
synthesizer
crystal input frequency
minimum phase comparator
frequency
maximum phase
comparator frequency
operating ambient
temperature
3
μ
A
I
DDpd
0.25
mA
f
RF
50
1100
MHz
f
XTALIN
f
pc(min)
3
10
35
MHz
kHz
f
pc(max)
750
kHz
T
amb
30
+85
°
C
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相關代理商/技術參數 |
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| UMA1015M | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power dual frequency synthesizer for radio communications |
| UMA1015M/C2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power dual frequency synthesizer for radio communications |
| UMA1016AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Frequency synthesizer for radio communication equipment |
| UMA1016BT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Frequency synthesizer for radio communication equipment |
| UMA1016XT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial-Input Frequency Synthesizer |
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