
AMERICAN MICROSYSTEMS, INC.
April 2000
FS6217-01
FS6217-01
FS6217-01FS6217-01
Dual PLL Clock Ge nerator IC
Dual PLL Clock Ge nerator IC
Dual PLL Clock Ge nerator ICDual PLL Clock Ge nerator IC
Advance Information
Advance Information
Advance InformationAdvance Information
1.0 Features
• 27MHz master clock input
• Generated audio system clocks
SCKO1 : 33.8688MHz (fixed) 
SCKO2 : 256 x F 
SCKO3 : 384 x F 
SCKO4 : 768 x F
• Zero ppm synthesis error on all output clocks
• Low cycle-to-cycle and cumulative clock jitter
• Multiple sampling frequencies:
Fs = 32, 44.1, 48, 64, 88.2, and 96KHz 
  (@ 256x, 384x, and 768x F 
Fs = 128, 176.4, and 192KHz 
  (@ 256x and 384x F
• Backward-compatible with PLL1700
• 3.3V logic interface
• Dual power supplies: +5v and +3.3v
(contact factory for +3.3 volt only version)
• Small package: 20 pin SSOP (5.3mm)
• Custom frequency patterns and packages are avail-
able. Contact your local AMI Sales Representative for 
more information.
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2.0 Description
The FS6217-01 is a C MOS clock generator IC designed 
to minimize cost and component count in digital video/ 
audio systems.
The FS6217-01 can generate four system clocks from a 
single 27MHz reference frequency.
This device elim inates ext ernal c om ponents and pro vides 
the low phase jitter performance needed for highperformance digital-to-analog converters (DAC) and 
analog-to-digital converters (ADC).
The FS6217-01 is ideal for MPEG-2 applications which 
use a 27MHz master clock such as: DVD players, DV D 
add-on cards for m ultimedia PCs, digita l HDTV systems , 
and set-top boxes.
Figure 1: Pin Configuration
ML/SR0
MODE
VDD 
GND
XT2 
XT1
GNDP
VDDP
SR1
MCKOP
1
2
3
4
5
FS6217-01
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
MC/FS1 
MD/FS0 
RST 
SCKO3 
VDDB 
GNDB 
SCKO2 
SCKO4 
SCKO1 
MCKON
20-pin SSOP (5.3mm)
Figure 2: Block Diagram
XT1
XT2
SR1
ML/SR0 
MC/FS1 
MD/FS0
MODE
RST
This document contains information on a product under development. American Microsystems, Inc. reserves the right to change or discontinue this product without notice.
ISO9001
ISO9001
ISO9001ISO9001
20 
19
18
6
5
9
Look-Up
1
2
Shift
Register
Table
Reset
PLL1
Dividers
&
Switching
PLL2
Logic
FS6217-01
10
11
12
14
17
13
MCKOP
MCKON
SCKO1
SCKO2
SCKO3
SCKO4
4.18.00