FEATURES
27-MHz Master Clock Input
Generated Audio System Clock:
− SCKO0: 768 fS (fS = 44.1 kHz)
− SCKO1: 384 fS, 768 fS (fS = 44.1 kHz)
− SCKO2: 256 fS (fS = 32, 44.1, 48, 64, 88.2,
96 kHz)
− SCKO3: 384 fS (fS = 32, 44.1, 48, 64, 88.2,
96 kHz)
Zero PPM Error Output Clocks
Low Clock Jitter: 50 ps (Typical)
Multiple Sampling Frequencies:
− fS = 32, 44.1, 48, 64, 88.2, 96 kHz
3.3-V Single Power Supply
PLL1705: Parallel Control
PLL1706: Serial Control
Package: 20-Pin SSOP (150 mil), Lead-Free
Product

APPLICATIONS
DVD Players
DVD Add-On Cards for Multimedia PCs
Digital HDTV Systems
Set-Top Boxes

DESCRIPTION
The PLL1705† and PLL1706† are low cost, phase-locked
loop (PLL) multiclock generators. The PLL1705 and
PLL1706 can generate four system clocks from a 27-MHz
reference input frequency. The clock outputs of the
PLL1705 can be controlled by sampling frequency-control
pins and those of the PLL1706 can be controlled through
serial-mode control pins. The device gives customers both
cost and space savings by eliminating external
components and enables customers to achieve the very
low-jitter performance needed for high performance audio
DACs and/or ADCs. The PLL1705 and PLL1706 are ideal
for MPEG-2 applications which use a 27-MHz master
clock such as DVD players, DVD add-on cards for
multimedia PCs, digital HDTV systems, and set-top
boxes.