SAA7893 PHILIPS [NXP Semiconductors], SAA7893 Datasheet - Page 12

• Manufacturer Part Number: SAA7893
• Description: Super audio media player
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 10925
Product data
7.2.2 Analog HF input
7.3.1 Audio input
7.3.2 DAC interface
7.3 Audio interface
7.4 SDRAM interface
7.5 Clock and reset input
The analog HF input, coming from the optical pickup unit, is also fed to the
SAA7893HL to extract the copy protection information PSP.
The audio input is a 6-channel PCM-I
The audio output is a 6-channel output and a separate stereo output. Both outputs
can be set in DSD and in PCM-I
The SDRAM interface forms a glueless interface to one 64 Mbit SDRAM device.
Supported devices are only PC100 compliant or faster SDRAM devices:
Different processing clocks are needed in the SAA7893HL:
It is not required that these clocks are locked.
RESETn is an asynchronous reset and should be kept LOW for at least 10 periods of
sys_clk.
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Parallel interface (UDE data interface part): a parallel front-end interface with a
handshake protocol.
Organization: 64 Mbit (1M
Refresh period: 4096 cycles per 64 ms
Clock frequency: f
Refresh cycle: t
Command period: t
sys_clk: system clock for data processing part; frequency can be between
27 and 35 MHz; see
aud_clk: audio clock reference; can be 256/384/512/768
see
proc_clk: host processor clock (only used in SAD16_01/02 mode)
B_BCLK: front-end bit/byte clock.
Figure 7
and
Rev. 02 — 26 February 2003
rcar
Table 4
clk
rc
Figure 6
70 ns
100 MHz
70 ns.
16
2
and
S mode.
4 banks)
Table 3
2
S input.
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Super audio media player
SAA7893HL
f
s
(f
s
= 44.1 to 48 kHz);
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