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Электронный компонент: PE3236-21

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PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 1 of 16




Product Description


































Figure 1. Block Diagram


PRODUCT SPECIFICATION
PE3236
2.2 GHz Integer-N PLL for Low
Phase Noise Applications

Features
2.2 GHz operation
10/11 dual modulus prescaler
Internal phase detector
Serial, parallel or hardwired
programmable
Low power 22 mA at 3 V
Q3236 PLL replacement
Ultra-low phase noise
Peregrine's PE3236 is a high performance integer-N PLL
capable of frequency synthesis up to 2.2 GHz. The
superior phase noise performance of the PE3236 is ideal
for applications such as LMDS / MMDS / WLL
basestations and demanding terrestrial systems.

The PE3236 features a 10/11 dual modulus prescaler,
counters and a phase comparator as shown in Figure 1.
Counter values are programmable through either a serial
or parallel interface and can also be directly hard wired.
This programming flexibility, combined with the dual latch
architecture enabling ping-pong loading of the main
divide counter, makes these PLLs well suited as the core
for fractional-N or sigma-delta implementation.

The PE3236 is optimized for terrestrial applications.
Fabricated in Peregrine's patented UTSi (Ultra Thin
Silicon) CMOS technology, the PE3236 offers excellent
RF performance with the economy and integration of
conventional CMOS.
F
in
F
in
Prescaler
10 / 11
20
Main
Counter
20
Secon-
dary
20-bit
Latch
20
Primary
20-bit
Latch
Pre_en
M(6:0)
A(3:0)
R(3:0)
16
20
R Counter
f
r
Phase
Detector
6
6
f
c
f
p
8
D(7:0)
13
Sdata
PD_U
PD_D
PE3236
Product Specification
Copyright
Peregrine Semiconductor Corp. 2003
File No. 70/0026~02E
|
UTSi CMOS RFIC SOLUTIONS

Page 2 of 16
Figure 2. Pin Configuration

Table 1. Pin Descriptions
Pin No.
Pin Name
Interface Mode
Type
Description
1 V
DD
ALL
(Note 1)
Power supply input. Input may range from 2.85 V to 3.15 V. Bypassing recommended.
2 R
0
Direct
Input
R Counter bit0 (LSB).
3 R
1
Direct
Input
R Counter bit1.
4 R
2
Direct
Input
R Counter bit2.
5 R
3
Direct
Input
R Counter bit3.
6 GND ALL
(Note
1)
Ground.
D
0
Parallel
Input
Parallel data bus bit0 (LSB).
7
M
0
Direct
Input
M Counter bit0 (LSB).
8 D
1
Parallel
Input
Parallel data bus bit1.
M
1
Direct
Input
M
Counter
bit1.
9 D
2
Parallel
Input
Parallel data bus bit2.
M
2
Direct
Input
M
Counter
bit2.
10 D
3
Parallel
Input
Parallel data bus bit3.
M
3
Direct
Input
M
Counter
bit3.
11 V
DD
ALL
(Note 1)
Same as pin 1.
12 V
DD
ALL
(Note 1)
Same as pin 1.
11
12
13
14
15
16
17
10
9
8
7
6
5
4
3
2
1 44 43 42 41 40
35
34
33
32
31
30
29
36
37
38
39
18 19 20 21 22 23 24 25 26 27 28
D
0
, M
0
D
1
, M
1
D
2
, M
2
D
3
, M
3
V
DD
V
DD
S_WR, D
4
, M
4
Sdata, D
5
, M
5
Sclk, D
6
, M
6
FSELS, D
7
, Pre_en
GND
GND
f
p
V
DD
_f
p
D
out
V
DD
C
ext
V
DD
PD_D
PD_U
V
DD
_f
c
f
c
F
in
F
in
Hop
_
WR
A_WR
M1
_W
R
V
DD
Bmo
d
e
S
m
ode, A
3
M2
_W
R
,
A
2
E_WR,
A
1
F
S
EL
P,
A
0
GND
R
3
R
2
R
1
R
0
V
DD
En
h
LD
fr
GND
GND
PE3236
Product Specification
PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 3 of 16
Pin No.
Pin Name
Interface Mode
Type
Description
S_WR Serial
Input
Serial load enable input. While S_WR is "low", Sdata can be serially clocked. Primary
register data are transferred to the secondary register on S_WR or Hop_WR rising
edge.
D
4
Parallel
Input
Parallel data bus bit4.
13
M
4
Direct
Input
M
Counter
bit4.
Sdata
Serial
Input
Binary serial data input. Input data entered MSB first.
D
5
Parallel
Input
Parallel data bus bit5.
14
M
5
Direct
Input
M
Counter
bit5.
Sclk Serial
Input
Serial clock input. Sdata is clocked serially into the 20-bit primary register (E_WR
"low") or the 8-bit enhancement register (E_WR "high") on the rising edge of Sclk.
D
6
Parallel
Input
Parallel data bus bit6.
15
M
6
Direct
Input
M
Counter
bit6.
FSELS Serial
Input
Selects contents of primary register (FSELS=1) or secondary register (FSELS=0) for
programming of internal counters while in Serial Interface Mode.
D
7
Parallel
Input
Parallel data bus bit7 (MSB).
16
Pre_en
Direct
Input
Prescaler enable, active "low". When "high", F
in
bypasses the prescaler.
17 GND ALL
Ground.
FSELP Parallel
Input
Selects contents of primary register (FSELP=1) or secondary register (FSELP=0) for
programming of internal counters while in Parallel Interface Mode.
18
A0
Direct
Input
A Counter bit0 (LSB).
Serial Input
Enhancement register write enable. While E_WR is "high", Sdata can be serially
clocked into the enhancement register on the rising edge of Sclk.
E_WR
Parallel Input
Enhancement register write. D[7:0] are latched into the enhancement register on the
rising edge of E_WR.
19
A
1
Direct
Input
A Counter bit1.
M2_WR Parallel
Input
M2 write. D[3:0] are latched into the primary register (R[5:4], M[8:7]) on the rising edge
of M2_WR.
20
A
2
Direct
Input
A Counter bit2.
Smode Serial,
Parallel Input
Selects serial bus interface mode (
Bmode
=0, Smode=1) or Parallel Interface Mode
(
Bmode
=0, Smode=0).
21
A
3
Direct
Input
A Counter bit3 (MSB).
22
Bmode
ALL
Input
Selects direct interface mode (
Bmode
=1).
23 V
DD
ALL
(Note 1)
Same as pin 1.
24 M1_WR
Parallel
Input
M1 write. D[7:0] are latched into the primary register (
Pre_en
, M[6:0]) on the rising
edge of M1_WR.
25 A_WR
Parallel
Input
A write. D[7:0] are latched into the primary register (R[3:0], A[3:0]) on the rising edge of
A_WR.
26 Hop_WR
Serial,
Parallel
Input
Hop write. The contents of the primary register are latched into the secondary register
on the rising edge of Hop_WR.
27 F
in
ALL
Input
Prescaler input from the VCO. 2.2 GHz max frequency.
28
F
in
ALL Input
Prescaler complementary input. A bypass capacitor in series with a 51 ohm resistor
should be placed as close as possible to this pin and be connected directly to the
ground plane.
29 GND ALL
Ground.
PE3236
Product Specification
Copyright
Peregrine Semiconductor Corp. 2003
File No. 70/0026~02E
|
UTSi CMOS RFIC SOLUTIONS

Page 4 of 16
Pin No.
Pin Name
Interface Mode
Type
Description
30 f
p
ALL
Output
Monitor pin for main divider output. Switching activity can be disabled through
enhancement register programming or by floating or grounding V
DD
pin 31.
31 V
DD
-f
p
ALL
(Note
2)
V
DD
for f
p
.
32 Dout Serial,
Parallel
Output
Data Out. The MSEL signal and the raw prescaler output are available on Dout through
enhancement register programming.
33 V
DD
ALL
(Note 1)
Same as pin 1.
34 Cext ALL
Output
Logical "NAND" of PD_
U
and PD_
D
terminated through an on chip, 2 kohm series
resistor. Connecting Cext to an external capacitor will low pass filter the input to the
inverting amplifier used for driving LD.
35 V
DD
ALL
(Note 1)
Same as pin 1.
36 PD_
D
ALL
Output
PD_
D
is pulse down when f
p
leads f
c
.
37 PD_
U
ALL
PD_
U
is pulse down when f
c
leads f
p
.
38 V
DD
-f
c
ALL
(Note
2)
V
DD
for f
c
.
39 f
c
ALL
Output
Monitor pin for reference divider output. Switching activity can be disabled through
enhancement register programming or by floating or grounding V
DD
pin 38.
40 GND ALL
Ground.
41 GND ALL
Ground.
42 f
r
ALL
Input
Reference frequency input.
43 LD ALL
Output,
OD
Lock detect and open drain logical inversion of Cext. When the loop is in lock, LD is
high impedance, otherwise LD is a logic low ("0").
44
Enh
Serial, Parallel
Input
Enhancement mode. When asserted low ("0"), enhancement register bits are functional.
Note 1:
V
DD
pins 1, 11, 12, 23, 31, 33, 35, and 38 are connected by diodes and must be supplied with the same positive voltage level.
Note 2:
V
DD
pins 31 and 38 are used to power the f
p
and f
c
outputs and can alternatively be left floating or connected to GND to disable the f
p
and f
c
outputs.
PE3236
Product Specification
PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 5 of 16
Table 2. Absolute Maximum Ratings
Symbol Parameter/Conditions Min Max Units
V
DD
Supply
voltage
-0.3
4.0 V
V
I
Voltage on any input
-0.3
V
DD
+ 0.3
V
I
I
DC into any input
-10
+10
mA
I
O
DC into any output
-10
+10
mA
T
stg
Storage
temperature
range
-65 150
C

Table 3. Operating Ratings
Symbol Parameter/Conditions Min Max Units
V
DD
Supply
voltage
2.85
3.15 V
T
A
Operating
ambient
temperature range
-40 85
C

Table 4. ESD Ratings
Symbol Parameter/Conditions Level
Units
V
ESD
ESD voltage (Human Body
Model)
1000 V
Note 1:
Periodically sampled, not 100% tested. Tested per MIL-
STD-883, M3015 C2
Electrostatic Discharge (ESD) Precautions
When handling this UTSi device, observe the same
precautions that you would use with other ESD-
sensitive devices. Although this device contains
circuitry to protect it from damage due to ESD,
precautions should be taken to avoid exceeding the
rating specified in Table 4.

Latch-Up Avoidance
Unlike conventional CMOS devices, UTSi CMOS
devices are immune to latch-up.