ak4184a AKM Semiconductor, Inc., ak4184a Datasheet - Page 8

• Manufacturer Part Number: ak4184a
• Description: Tsc With Keypad Scanner And Gpio Expander
• Manufacturer: AKM Semiconductor, Inc.

Ta = -40°C to 85°C, AVDD = 2.5V to 3.6V, IOVDD = 1.6V to AVDD, CL = 20pF
Parameter
Internal oscillator frequency
Touch Panel (A/D Converter)
SCLK period
Sampling Time (Rin = 600Ω)
Throughput Rate
Conversion Time
Timing Characteristics
SCLK Pulse Width Low
CSN “↓” to First SCLK “↓”
CSN “↓” to DOUT Tri-State Disabled
Data Setup Time
Data Hold Time
Data Output Delay after SCLK“↓”
CSN “↑” to DOUT Hi-Z state
CSN “H” Time
SCLK “↑” to CSN “↑”
Reset Timing
RESETN Pulse Width
Note 5. Device is reset by pull RESETN pin to “L”.
MS0947-E-00
DOUT
SCLK
CSN
DIN
Pulse Width High
Hi-Z
tDV
RESETN
tCSS
(Note
5)
tCP
tDS
SWITCHING CHARACTERISTICS
Figure 3. Power-down & Reset Timing
tCKL
Figure 2. Timing Diagram
tCKH
Symbol
tCONV
tDH
tCKH
tCSW
tCKL
tCDZ
tCSH
tRST
tSam
tCSS
tDV
tDH
tDD
fosc
tDS
tCP
fs
- 8 -
tRST
min
300
150
200
0.9
1.5
80
80
40
40
50
24
20
-
-
-
-
D11
tDD
D10
typ
1.3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1000
max
125
1.7
50
50
70
-
-
-
-
-
-
-
-
-
-
tCSH
D0
VIL
[AK4184A]
tCDZ
2008/04
tCSW
Hi-Z
Units
MHz
KHz
tCP
µs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
50%IOVDD
VIH
VIL
VIH
VIL
VIH
VIL