FS6377-01 Datasheet, PDF (1/21 Pages) AMI SEMICONDUCTOR – Programmable 3-PLL Clock Generator IC

FS6377-01/FS6377-01g Programmable 3-PLL Clock Generator IC
Data Sheet
1.0 Features
• Three on-chip PLLs with programmable reference
and feedback dividers
• Four independently programmable muxes and post
dividers
• I²C™-bus serial interface
• Programmable power-down of all PLLs and output
clock drivers
2.0 Description
The FS6377 is a CMOS clock generator IC designed to
minimize cost and component count in a variety of
electronic systems. Three I²C-programmable phase-
SDA 1
SEL_CD 2
PD 3
VSS 4
XIN 5
XOUT 6
OE 7
VDD 8
16 SCL
15 CLK_A
14 VDD
13 CLK_B
12 CLK_C
11 VSS
10 CLK_D
9 ADDR
16-pin (0.150") SOIC
Figure 1: Pin Configuration
• One PLL and two mux/post-divider combinations can
be modified by SEL_CD input
• Tristate outputs for board testing
• 5V to 3.3V operation
• Accepts 5MHz to 27MHz crystal resonators
• Commercial (FS6377-01) and industrial (FS6377-01i)
temperature ranges
locked loops feeding four programmable muxes and post
dividers provide a high degree of flexibility.
XIN
XOUT
PD
SCL
SDA
ADDR
SEL_CD
OE
Reference
Oscillator
Power Down
Control
I²C-bus
Interface
PLL A
PLL B
PLL C
Mux A
Post
Divider A
Mux B
Post
Divider B
Mux C
Post
Divider C
CLK_A
CLK_B
CLK_C
Mux D
Post
Divider D
CLK_D
Figure 2: Block Diagram
FS6377
AMI Semiconductor
www.amis.com
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