ak4184 AKM Semiconductor, Inc., ak4184 Datasheet - Page 8

• Manufacturer Part Number: ak4184
• 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=600 )
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)
Note 5. Device is reset by pull RESETN pin to “L”.
MS0603-E-00
DOUT
SCLK
CSN
DIN
Pulse Width High
Hi-Z
tDV
RESETN
tCSS
tCP
tDS
SWITCHING CHARACTERISTICS
Figure 2. Power-down & Reset Timing
tCKL
Figure 1. Timing Diagram
tCKH
Symbol
tCONV
tDH
tCSW
tCKH
tCKL
tCDZ
tCSH
tCSS
tRST
tSam
tDV
tDH
tDD
fosc
tDS
tCP
fs
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8
tRST
300
150
min
200
150
0.9
1.5
80
80
40
40
50
24
-
-
-
-
D11
tDD
D10
typ
1.3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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1000
max
125
1.7
50
50
70
-
-
-
-
-
-
-
-
-
-
tCSH
D0
VIL
2007/04
tCDZ
tCSW
[AK4184]
Hi-Z
Units
MHz
KHz
tCP
ns
Ís
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
50%IOVDD
VIH
VIL
VIH
VIL
VIH
VIL