GS1503 Gennum Corporation, GS1503 Datasheet - Page 22

• Manufacturer Part Number: GS1503
• Description: HD Embedded Audio Codec
• Manufacturer: Gennum Corporation

1.6.2.2
A 6.144MHz (128fs) audio clock must be supplied to the
ACLKA and ACLKB inputs. An audio word clock at 48kHz
(fs) must also be supplied to the WCINA and WCINB inputs,
as shown in Figure 21. The AUDIO_CS[183:0] bits in Host
Interface registers 058h to 06Eh can be used to enter the
22 8-bit bytes of the Audio Channel Status Block, as
defined in AES3-1992. NOTE: The CRC byte is generated
internally by the GS1503. The GS1503 will default to
Professional audio mode with 24-bit word length and
emphasis off. See Table 9.
AIN1/2, AIN3/4
AIN5/6, AIN7/8
ACLKA/B
WCINA/B
Serial Audio Input Modes
Y/C b / C r [19:0]
Audio Channels 1 & 2
Audio Channels 3 & 4
6.144MHz (128 fs)
48kHz (fs)
Audio Channels 5 & 6
Audio Channels 7 & 8
6.144MHz (128 fs)
48kHz (fs)
Fig. 21 Serial Audio Input Configuration and Timing
64 CLKs
22
VIN[19:0]
AIN1/2
AIN3/4
ACLKA
WCINA
AIN5/6
AIN7/8
ACLKB
WCINB
GS1503
64 CLKs
15879 - 1