AK8815 Datasheet, PDF (7/37 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
[AK8815/16]
(4) Analog Characteristics
[Operating voltage : AVDD = DVCC=2.7 - 3.3 V, Temperature: -20 - 85°C]
Parameter
Min
Typ
Max
Units
Conditions
Resolution
9
bit
Integral non-linearity ( error )
+/- 0.6
+/- 2.0
LSB
Differential non-linearity ( error )
+/- 0.4
+/- 1.0
LSB
Output full scale voltage
1.21
1.28
1.35
V
Note1)
Output offset voltage
5.0
mV
Note2)
On-chip reference voltage
1.17
1.23
1.30
V
Reference voltage drift
-50
ppm/°C
Note1) values are when a 390 ohm output load, a 12 Kohm IREF pin resistor and on-chip VREF are used.
Full scale output current is calculated as Iout = full scale output voltage ( typ. 1.28 V ) / 390 ohm = typ. 3.28
mA.
Note2) A voltage referenced to VSS when a decimal zero voltage is input to DAC.
(5) Power Consumption
[Operating voltage : AVDD = DVCC=2.7 - 3.3 V, Temperature: -20 - 85°C]
Parameter
Min
Typ
Max
Units
Conditions
Total power consumption
24
36
mA
Note3)
Power-down current 1
10
100
uA
Note4)
Power-down current 2
1
10
uA
Note5)
XTAL part current
2.0
3.3
mA
Note6)
Analog part operating current 1
6.5
mA
Note7)
Analog part operating current 2
1.6
µA
Note8)
Note3) NTSC mode on-chip color bar output is enabled and DAC is “ on “ ( no external output loads are
connected , other than those recommended, connecting-components ).
Note4) measuring conditions :
input / output settings after power-down sequence are, PDN pin is at GND level, CLKOUT and SDO output
are at high level ( power supply voltage ) with no external connection, input voltage on those input pins is 1/2
level of power supply which are set to accept Hi-Z input at power-down, and TEST = ATPG = GND ( or left
open ).
Power supplies are AVDD = DVCC = PVDD.
Each ground pin ( DVSS, AVSS1, AVSS2, PVSS1, PVSS2 ) is always 0 V ( voltage reference ).
Note5) measuring conditions :
set AVDD = DVCC = 0 V ( potential difference with voltage reference ground is 0 V ) in power-down current 1
condition.Set those input pins to GND level which are set to accept Hi-Z input at power-down.
Power-down current 2 is PVDD power supply current at PVDD = 1.6 V ~ 1.8 V or 2.7 V ~ 3.3 V.
Note6) at RSTN = H, PDN = H
Note7) when DAC output is “ ON “.
Note8) when DAC output is “ OFF “.
MS0331-E-00
7
2004 / 08