NBC12439AFNG ON Semiconductor, NBC12439AFNG Datasheet - Page 2

• Manufacturer Part Number: NBC12439AFNG
• Description: IC CLOCK SYNTH 50-800MHZ 28-PLCC
• Manufacturer: ON Semiconductor
• Type: PLL Clock Generatorr

Specifications of NBC12439AFNG

• Pll: Yes
• Input: Crystal
• Output: PECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:1
• Differential - Input:output: No/Yes
• Frequency - Max: 800MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.135 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Frequency-max: 800MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10−20MHz
FREF_EXT
XTAL_SEL
Table 1. Output Division
S_CLOCK
S_LOAD
P_LOAD
S_DATA
OE
N [1:0]
0 0
0 1
1 0
1 1
28
27
26
15
4
5
6
7
3
XTAL1
XTAL2
OSC
B 2
F
Output Division
7−BIT B M
REF
COUNTER
Figure 1. Block Diagram (28−Lead PLCC)
7−BIT SR
2
4
8
1
DETECTOR
PHASE
0
8
LATCH
http://onsemi.com
14
M[6:0]
B 2
1
7
VCO
400−800
2
MHz
2−BIT SR
Table 2. XTAL_SEL And OE
*When disabled, FOUT goes LOW, FOUT goes HIGH.
PWR_DOWN
XTAL_SEL
PWR_DOWN
0
(1, 2, 4, 8)
POWER
LATCH
Input
DOWN
17, 18
OE*
2
B N
N[1:0]
1
2
+3.3 or 5.0 V
PLL_V
22, 19
Outputs Disabled
1
3−BIT SR
FREF_EXT
LATCH
F
CC
OUT
0
V
CC
21, 25
24
23
20
Outputs Enabled
F
+3.3 or 5.0 V
OUT
XTAL
1
B 16
FOUT
FOUT
TEST