AK8451 Datasheet, PDF (9/42 Pages) Asahi Kasei Microsystems – 1 channel-input 16 bit 6MSPS ADC

ASAHI KASEI
[AK8451]
(Note 6) It defines that a boundary point of ADC output codes between 0000h and 0001h exists
within ±50mV range of the offset adjustment DAC setting when 1.1V is fed on CISIN &
VCLP pins in DC Direct Coupled mode, and when PGA gain is set to 0dB.
(Note 7) Relative value to the gain at PGA setting is 00h.
(Note 8) A full-scale minus 2 dB, 1 MHz sine-wave signal is input. (@ 4bit bus）
(Note 9) A clock supply to MCLK is stopped.
(Note 10) At the capacitive load is 20pF.
(Note 11) Condition: Input signal frequency : 1MHz, Noise frequency : 0.1MHz, Signal : Noise =
10:1.No shipping inspection.
„ LEDD block, Analog characteristics
(AVDD=3.3V, LVDD=5.5, MCLK=40MHz, Single Edge Mode, Ta=25°C,
Item
LED drive current range
The LED protection circuit
activation current
LED current (Including
resistance accuracy)
(RED)
Min.
20
105
53
LED current
Red
Green
95
Blue
95
LED current accuracy
(GREEN,BLUE)
94.8
90.7
86.5
82.3
78.2
74.0
69.8
LED current LED pin -2.5
voltage dependence
LVDD power consumption
Typ.
150
60
100
100
95.8
91.7
87.5
83.3
79.2
75.0
70.8
0.6
Max.
60
195
Unit
mA
mA
unless otherwise specified)
Remarks
67
105
105
96.8
92.7
88.5
84.3
80.2
76.0
71.8
2.5
1.5
mA Å There is possibility to adjust
the typical value after ES
evaluation.
It adjusts together with the
Min./Max. value.
IREF resister =4.7k±1%
LED pin voltage =2.0V(Note 1)
IREF resister =4.7k±1%
% LED pin voltage =2.0V
%
%
LED pin voltage =0.5V
% 000
% 001
% 010
% 011
% 100
% 101
% 110
% 111
% LED pin voltage =2.0V
reference
mA Except LED drive current
(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
MS0937-E-01
9
2011/04