AK8452 Datasheet, PDF (10/46 Pages) Asahi Kasei Microsystems – 2 channel-input 16 bit 10MSPS ADC

ASAHI KASEI
AKM Confidential
[AK8452]
(Note 1) IREF resister(kΩ) = 60 ÷ [RED LED current(mA)] × 4.7(kΩ) . And [RED LED current] can be
set within the range of 20mA～60mA .
(AVDD=3.135~3.465V, LVDD= 4.5~5.7 V, Ta=0∼70°C, unless otherwise specified)
Item
Min. Typ. Max. Unit
Remarks
LED pin voltage
0.5
V
LED Vf
1.5
4.8
V When LVDD<5.3V case,
Vf(max.)=LVDD-0.5V
■ LEDD block, Switching characteristics
(AVDD=3.135~3.465V, LVDD= 4.5~5.7 V, Ta=0∼70°C, unless otherwise specified)
No.
Item
min. typ. max. Unit
Condition
1 LED current rise time
10 μsec
2 LED current fall time
10 μsec
3 Reset valid setup time
0.1
μsec LEDB_EN(0.7AVDD)
LEDB_EN(0.7AVDD):base position
To
LEDR_EN(0.3AVDD)
LEDG_EN(0.3AVDD)
4 Count up setup time
0.1
μsec LEDB_EN(0.3AVDD)
LEDB_EN(0.3AVDD):base position
To
LEDR_EN(0.7AVDD)
LEDG_EN(0.7AVDD)
5 Reset invalid setup time
0.1
μsec LEDB_EN(0.3AVDD)
LEDB_EN(0.3AVDD):base position
To
LEDR_EN(0.3AVDD)
LEDG_EN(0.3AVDD)
LEDR_EN
LEDG_EN
LEDB_EN
LEDR,G,B Current
0.7AV D D
0.3AV D D
90%
1
10%
２
LED*_EN through mode
MS0955-E-00
10
2008/03