AK7782 AKM [Asahi Kasei Microsystems], AK7782 Datasheet - Page 20

• Manufacturer Part Number: AK7782
• Description: Dual Audio DSP with 24bit 5ch ADC & SRC
• Manufacturer: AKM [Asahi Kasei Microsystems]

4) Microprocessor Interface
MS1337-E-00-PB
(Ta=-40°C ~85°C, AVDD=DVDD=3.0~3.6V; DVDD18=1.7~1.9V, CL=20pF)
Microprocessor Interface Signal
SCLK Frequency
SCLK Low Level Width
SCLK High Level Width
Microprocessor → AK7782
Time from PDSPRSTN, PADRSTN“↓” to RQN“↓”
Time from RQN“↑” to PDSPRSTN, PADRSTN“↑”
RQN High Level Width
Time from RQN“↓” to SCLK“↓”
Time from SCLK“↑” to RQN“↑”
SI Latch Setup Time
SI Latch Hold Time
AK7782 ← Microprocessor
Delay Time from SCLK “↓” to SO Output
Delay Time from SCLK “↑” to SO Output
Time from RQN “↓” to SO Hi-Z Release
(Iout=±360μA)
Time from RQN “↑” to SO Hi-Z set (Iout=±360μA)
Parameter
- 20-
tSCLKH
tSCLKL
tWRQH
Symbol
tRQHR
tRQHS
fSCLK
tREW
tWRE
tWSC
tSCW
tSOH
tSOS
tSIH
tSIS
min
200
200
500
500
500
500
800
200
200
200
typ
max
200
600
600
2.1
[AK7782]
2011/11
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns