Users Manual
FSC-BT806 Datasheet
Shenzhen Feasycom Technology Co.,Ltdwww.feasycom.com
-43-
5.8PCM Dynamic Characteristics
Table 22:PCM Dynamic Characteristics
Parameter
Min
Typ
Max
Unit
PCM Master Timing
f
mclk
- PCM_CLK frequency
4MHz DDS generation.Selection of frequencyis programmable.
-
128
256
512
-
KHz
f
mclk
- PCM_CLK frequency
48MHz DDSgeneration. Selectionof frequency isprogrammable.
2.9
-
-
KHz
PCM_SYNC frequency for SCO connection
-
8
-
KHz
t
mclkh
(a) - PCM_CLK high4MHz DDS generation
980
-
-
nS
t
mclkl
(a)- PCM_CLK low 4MHz DDS generation
730
-
-
nS
PCM_CLK jitter48MHz DDS generation
-
-
21
ns pk-pk
t
dmclksynch
- Delay time from PCM_CLK high to PCM_SYNChigh
-
-
20
nS
t
dmclkpout
- Delay time from PCM_CLK high to valid PCM_OUT
-
-
20
nS
t
dmclklsyncl
- Delay time from PCM_CLK low to PCM_SYNClow (Long
Frame Sync only)
-
-
20
nS
t
dmclkhsyncl
- Delay time from PCM_CLK high to PCM_SYNClow
-
-
20
nS
t
dmclklpoutz
- Delay time from PCM_CLK low to PCM_OUT high
impedance
-
-
20
nS
t
dmclkhpoutz
- Delay time from PCM_CLK high to PCM_OUT high
impedance
-
-
20
nS
t
supinclkl
- Set-up time for PCM_IN valid to PCM_CLK low
20
-
-
nS
t
hpinclkl
- Hold time for PCM_CLK low to PCM_IN invalid
0
-
-
nS
(a) Assumes normal system clock operation. Figures vary during low-power modes, when system clock speeds are reduced.
PCM Slave Timing
f
sclk
- PCM clock frequency (Slave mode: input)
64
-
2048
kHz
f
sclk
- PCM clock frequency (GCI mode)
128
-
4096
kHz
t
sclkl
- PCM_CLK low time
200
-
-
nS
t
sclkh
- PCM_CLK high time
200
-
-
nS
t
hsclksynch
- Hold time from PCM_CLK low to PCM_SYNC high
2
-
-
nS
t
susclksynch
- Set-up time for PCM_SYNC high to PCM_CLK low
20
-
-
nS
t
dpout
- Delay time from PCM_SYNC or PCM_CLK, whichever is later, to
valid PCM_OUT data (Long Frame Sync only)
-
-
20
nS
t
dsclkhpout
- Delay time from CLK high to PCM_OUT valid data
-
-
15
nS
t
dpoutz
- Delay time from PCM_SYNC or PCM_CLK low,whichever is
later, to PCM_OUT data line high impedance
-
-
15
nS
t
supinsclkl
- Set-up time for PCM_IN valid to CLK low
20
-
-
nS
t
hpinsclkl
- Hold time for PCM_CLK low to PCM_IN invalid
2
-
-
nS