Rainbow Electronics APR6008 - Manual (Page 19)

APR6008
Voice Recording & Playback Device Page 19
Revision 2.1
SPI clock high time T
hiSCLK
400 ns
Clock to rising edge of /CS T
rCS
200 ns
Fall of /CS to DO output T
fcsDO
200 ns
Fall of SCLK to data out valid
T
fSCLK
1000 ns
Rise of /CS to DO high Z T
hzDO
500 ns
Period SPI clock for digital read,
write DT
pSCLK
@4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
500 uS
250 uS
Equation 1
S
First SET_REC command to start
recording Tarec @4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
376
188
Equation 2
ms
ms
S
Rise of SAC after STOP Com-
mand to end of recording TSarec @4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
376
188
Equation 2
ms
ms
S
First SET_PLAY command to
audio output Taplay @4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
376
188
Equation 2
ms
ms
S
STOP after SET_PLAY or PLAY
to end of audio output TSaplay @4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
376
188
Equation 2
ms
ms
S
SAC period T
pSAC
REC, PLAY @4kHz
REC, PLAY @8kHz
REC, PLAY EXTCLK
FWD @4kHz
FWD @8kHz
FWD @ EXTCLK
752
376
Equation 3
2
1
Equation 4
ms
ms
ms
ms
S
SAC low time T
loSAC
REC, PLAY @4kHz
REC, PLAY @8kHz
REC, PLAY EXTCLK
FWD @4kHz
FWD @8kHz
FWD @ EXTCLK
94
47
equation 5
0.25
0.125
Equation 6
ms
ms
ms
ms
S
See Figure 6 and Table 1 T
next1
5 uS
See Figure 6 and Table 1 T
next2 mS 5
See Figure 6 and Table 1 T
next3
@4kHz Internal sample clock
@8kHz Internal sample clock
External sample clock
752
376
Equation 3
ms
ms
S
Item Symbol Condition Min Typ Max Unit