SAA8200HL Datasheet, PDF (25/71 Pages) NXP Semiconductors – Ensation Base integrated wireless audio baseband

Philips Semiconductors
SAA8200HL
Ensation Base integrated wireless audio baseband
7.3.3 System PLL
The DSP-PLL works in normal operating mode with feedback-divider and with
post-divider, this means that the base for the clock signal is the current controlled
oscillator (f_out = f_cco/P), running on 264.6 MHz. The output clock (f_out) is divided-by-2 to
generate a 132.3 MHz clock.
Features:
• Integrated PLL with on-chip Current Controlled Oscillator (CCO), no external
components for clock generation
• Functional down to 1.2 V (with reduced frequency range)
• 10 MHz to 25 MHz input frequency range
• 9.75 MHz to 160 MHz selectable output frequency with 50 % output duty cycle
• 156 MHz to 320 MHz CCO frequency range
• Power-down mode
• Input clock bypass mode
• Lock detector available
• Current consumption maximum 1 mA
• Maximum peak cycle-to-cycle output jitter = 300 ps.
7.4 Serial radio interface
Features:
• Interface between wireless audio baseband processor and wireless audio radio IC
• Bi-directional 3-wire serial interface
• Can be locked to audio sample frequencies
• Enables end-to-end audio clock synchronization
• Supports master and slave modes
• Supports continuous and high speed repetitive burst mode
• Control of the radio IC is handled via a separate I²C-bus interface
• Designed for minimal interference with the radio chip.
7.5 SRI I²C-bus
The I²C-bus master/slave module provides a serial interface that meets the I²C-bus
specification and supports all transfer modes from and to the I²C-bus. It supports the
following functionality:
• It supports both the normal mode (100 kHz SCL) and the fast mode (400 kHz SCL)
• It has word (32-bit) access from the CPU side
• Interrupt generation on received or sent byte (and some special cases).
The purpose of the SRI I²C-bus is to allow the download of program code from an external
EEPROM at start-up, configuration and monitoring of the radio IC (TEA7000), and
storage/retrieval of application specific parameters in an external data EEPROM.
SAA8200HL_2
Preliminary data sheet
Rev. 02 — 17 October 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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