2/24/2008 9T6WP
Preliminary Hardware Data Module
BCM7405
06/29/07
Timing and AC Characteristics
Bro a d c o m Co rp o r a ti o n
Document
7405-1HDM00-R
256Fs Audio Clock Output Timing Page 1-157
256F
S
A
UDIO
C
LOCK
O
UTPUT
T
IMING
Figure 1-42: 256Fs Audio Clock Output Timing Diagram
Table 1-28: 256Fs Audio Clock Output Timing Parameters
Description
Symbol
Min
Typical
Max
Units
256Fs_CLK period for Fs = 96 kHz
Tp_96kHz
–
40.69
–
ns
256Fs_CLK frequency for Fs = 96 kHz
F_96kHz
–
24.576
–
MHz
256Fs_CLK period for Fs = 48 kHz
Tp_48kHz
–
81.38
–
ns
256Fs_CLK frequency for Fs = 48 kHz
F_48kHz
–
12.2880
–
MHz
256Fs_CLK period for Fs = 44.1 kHz
Tp_44kHz
–
88.577
–
ns
256Fs_CLK frequency for Fs = 44.1 kHz
F_44kHz
–
11.2896
–
MHz
256Fs_CLK period for Fs = 32 kHz
Tp_32kHz
–
122.07
–
ns
256Fs_CLK frequency for Fs = 32 kHz
F_32kHz
–
8.1920
–
MHz
Jitter
Tj
–
–
2
ns
T
p
256Fs_CLK
T
j
T
j