FEATURES

27-MHz Master Clock Input

Generated Audio System Clock (PLL1707):

– SCKO0: 768 fS (fS = 44.1 kHz)

– SCKO1: 768 fS, 512 fS (fS = 48 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)

Generated Audio System Clock (PLL1708):

– SCKO0: 768 fS (fS = 44.1 kHz)

– SCKO1: 768 fS, 512 fS, 384 fS, 256 fS

(fS = 48 kHz)

– SCKO2: 256 fS (fS = 16, 22.05, 24, 32, 44.1,

48, 64, 88.2, 96 kHz)

– SCKO3: 384 fS (fS = 16, 22.05, 24, 32, 44.1,

48, 64, 88.2, 96 kHz)

Zero PPM Error Output Clocks

Low Clock Jitter: 50 ps (Typical)

Multiple Sampling Frequencies (PLL1707):

– fS = 32, 44.1, 48, 64, 88.2, 96 kHz

Multiple Sampling Frequencies (PLL1708):

– fS = 16, 22.05, 24, 32, 44.1, 48, 64, 88.2,

96 kHz

3.3-V Single Power Supply

PLL1707: Parallel Control

PLL1708: Serial Control

Package: 20-Pin SSOP (150 mil), Lead-Free

Product

APPLICATIONS

HDD + DVD Recorders

DVD Recorders

HDD Recorders

DVD Players

DVD Add-On Cards for Multimedia PCs

Digital HDTV Systems

Set-Top Boxes

DESCRIPTION

The PLL1707† and PLL1708† are low cost, phase-locked

loop (PLL) multiclock generators. The PLL1707 and

PLL1708 can generate four system clocks from a 27-MHz

reference input frequency. The clock outputs of the

PLL1707 can be controlled by sampling frequency-control

pins and those of the PLL1708 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 PLL1707 and PLL1708 are ideal

for MPEG-2 applications which use a 27-MHz master

clock such as DVD recorders, HDD recorders, DVD

add-on cards for multimedia PCs, digital HDTV systems,

and set-top boxes.