参数资料
型号: LUCDA4044AAPE
元件分类: PLL合成/DDS/VCOs
英文描述: PHASE DETECTOR, PDIP14
封装: 0.300 INCH, PLASTIC, DIP-14
文件页数: 1/6页
文件大小: 97K
代理商: LUCDA4044AAPE
Preliminary Data Sheet
August 1998
LUCDA4044 Phase Frequency Detector
Features
s
Typical propagation delay 9.0 ns (through phase
detector)
s
Includes charge pump and amplifier
s
Available in 14-pin DIP or SONB
12-3519F
Figure 1. Functional Diagram
Applications
s
Frequency synthesizers
s
Clock recovery
Description
The LUCDA4044 consists of two digital phase detec-
tors, a charge pump, and an amplifier. In combination
with a voltage-controlled multivibrator, this device is
useful in a broad range of phase-locked loop (PLL)
applications. The circuit accepts TTL waveforms at
the R and V inputs and generates an error voltage
that is proportional to frequency and/or phase differ-
ence.
Phase detector #1 is intended for use in systems
requiring zero frequency and phase at lock. Phase
detector #2 is used if quadrature lock is desired.
Phase detector #2 can also be used to indicate that
the main loop (utilizing phase detector #1) is out of
lock. This LUCDA4044 is a direct replacement for the
Motorola MC4044.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
PU
R
D1
V
UF
D2
GND
PD
VCC
U1
U2
DF
AIN
AOU
PHASE
FREQUENCY
DETECTOR
#1
PHASE
FREQUENCY
DETECTOR
#2
CHARGE
PUMP
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