CXD2309AQ
10-bit 85MSPS 3-Channel D/A Converter
Description
The CXD2309AQ is a 10-bit high-speed D/A converter
for video band, featuring RGB 3-channel input/
output. This is ideal for use in high-definition TVs and
high-resolution displays.
Features
•
Resolution 10-bit
•
Maximum conversion speed 85MSPS
•
RGB 3-channel input/output
•
Differential linearity error ±0.5LSB
•
Low power consumption 275mW
(200Ω load for 2Vp-p output)
•
Single +5V power supply
•
Low glitch
•
48-pin QFP package
Structure
Silicon gate CMOS IC
48 pin QFP (Plastic)
Absolute Maximum Ratings
(Ta = 25°C)
7
V
•
Supply voltage AV
DD
, DV
DD
•
Input voltage (All pins)
V
IN
V
DD
+ 0.5 to V
SS
– 0.5 V
•
Output current I
OUT
0 to 15
mA
•
Storage temperature
Tstg
–55 to +150
°C
Recommended Operating Conditions
•
Supply voltage AV
DD
, AV
SS
4.75 to 5.25
DV
DD
, DV
SS
•
Reference input voltage
V
REF
•
Clock pulse width
T
PW
1, T
PW
0
•
Operating temperature
Topr
4.75 to 5.25
1.8 to 2.0
5.2 (min.)
–20 to +85
V
V
V
ns
°C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E00739B21-PS
CXD2309AQ
Block Diagram
(LSB) R0
R1
R2
R3
R4
R5
R6
R7
R8
1
2
3
4
5
6
7
8
9
DECODER
DECODER
LATCHES
4LSB'S
CURRENT
CELLS
43 AV
SS
42 RO
6LSB'S
CURRENT
CELLS
(MSB) R9 10
RCK 31
(LSB) G0 11
G1 12
G2 13
G3 14
G4 15
G5 16
G6 17
G7 18
G8 19
(MSB) G9 20
GCK 32
(LSB) B0 21
B1 22
B2 23
B3 24
B4 25
B5 26
B6 27
B7 28
B8 29
(MSB) B9 30
BCK 33
DV
DD
48
BIAS VOLTAGE
GENERATOR
DECODER
DECODER
LATCHES
DECODER
DECODER
LATCHES
CLOCK
GENERATOR
4LSB'S
CURRENT
CELLS
45 AV
SS
44 GO
6LSB'S
CURRENT
CELLS
CLOCK
GENERATOR
4LSB'S
CURRENT
CELLS
47 AV
SS
46 BO
6LSB'S
CURRENT
CELLS
41 AV
DD
40 AV
DD
39 AV
DD
CLOCK
GENERATOR
38 VG
CURRENT CELLS
(FOR FULL SCALE)
37 VREF
36 IREF
VB 35
DV
SS
34
–2–
CXD2309AQ
DV
SS
IREF
VB
B9 (MSB)
Pin Configuration
GCK
RCK
BCK
B8
B7
B6
B5
36 35 34 33 32 31 30 29 28 27 26 25
VREF 37
VG 38
AV
DD
39
AV
DD
40
AV
DD
41
RO 42
AV
SS
43
GO 44
AV
SS
45
BO 46
AV
SS
47
DV
DD
48
1
(LSB) R0
2
R1
3
R2
4
R3
5
R4
6
R5
7
R6
8
R7
9
R8
10 11 12
R9
(MSB) G0
(LSB) G1
1 to 35 , 48 Digital system
36 to 47 Analog system
24 B3
23 B2
22 B1
21 B0 (LSB)
20 G9 (MSB)
19 G8
18 G7
17 G6
16 G5
15 G4
14 G3
13 G2
Pin Description and Equivalent Circuit
Pin No.
Symbol
I/O
Equivalent circuit
Description
1 to 10 R0 to R9
11 to 20 G0 to G9
DV
DD
B4
Digital input.
Pin 1 R0 (LSB) to Pin 10 R9 (MSB)
Pin 11 G0 (LSB) to Pin 20 G9 (MSB)
Pin 21 B0 (LSB) to Pin 30 B9 (MSB)
21 to 30 B0 to B9
I
31
32
33
34
RCLK
GCLK
BCLK
DV
SS
—
DV
DD
DV
SS
1
to 33
Clock input.
Digital ground.
DV
DD
35
VB
O
35
Connect an approximately 0.1µF
capacitor.
DV
SS
–3–
CXD2309AQ
Pin No.
Symbol
I/O
Equivalent circuit
Description
36
IREF
O
AV
DD
AV
DD
Reference current output.
Connect an "R
IR
" resistor which are
16 times the output resistance "R
OUT
".
36
AV
DD
AV
DD
AV
SS
37
38
AV
SS
AV
SS
37
VREF
I
Reference voltage input.
Sets an output full-scale value.
38
VG
O
Connect an approximately 0.1µF
capacitor.
39 to 41 AV
DD
42
RO
—
AV
DD
42
44
Analog power supply.
44
GO
O
46
AV
SS
Current output.
Output can be obtained by connecting
a resistor (200Ω typ.).
46
BO
AV
SS
43, 45, 47 AV
SS
48
DV
DD
—
—
Analog ground.
Digital power supply.
–4–
CXD2309AQ
Electrical Characteristics
(f
CLK
= 85MHz, AV
DD
= DV
DD
= 5V, R
OUT
= 200Ω, V
REF
= 2.0V, R
IR
= 3.3kΩ, Ta = 25°C)
Item
Resolution
Conversion speed
Integral non-linearity error
Differential non-linearity error
Symbol
n
f
CLK
AV
DD
= DV
DD
= 4.75 to 5.25V
Ta = –20 to +85°C
Endpoint
0
–2.0
–0.5
1.8 1.92
1.8 1.92
0
9.0
When "0000000000" data input
R
OUT
= 100Ω, 1Vp-p output
F
CLK
= 50MHz
When 10MHz
sin wave input
F
CLK
= 85MHz
F
CLK
= 50MHz
When 1MHz
sin wave input
F
CLK
= 85MHz
When 10MHz
sin wave output
VREF
F
CLK
= 50MHz
F
CLK
= 85MHz
1
9
15
AV
DD
= DV
DD
= 4.75 to 5.25V
Ta = –20 to +75°C
AV
DD
= DV
DD
= 4.75 to 5.25V
Ta = –20 to +75°C
2.15
0.85
–5
4
1
6
7
12
–1
×
100 [%]
5
40
50
36
49
49
63
61
48
55
58
9.6
Measurement conditions
Min. Typ. Max.
10
85
2.0
0.5
2.0
2.0
3
10
1
Unit
bit
MSPS
LSB
LSB
V
V
%
mA
mV
pV·s
dB
dB
mA
MΩ
pF
pF
V
µA
ns
ns
ns
ns
ns
E
L
E
D
Precision guaranteed output voltage range V
OC
Output full-scale voltage
V
FS
Output full-scale ratio
∗
1
F
SR
Output full-scale current
Output offset voltage
Glitch energy
Crosstalk
S/N ratio
Supply current
Analog input resistance
Input capacitance
Output capacitance
Digital input voltage
Digital input current
Setup time
Hold time
Propagation delay time
Rise time
Fall time
∗
1
Full-scale ratio =
I
FS
V
OS
GE
CT
SNR
I
DD
R
IN
C
I
C
O
V
IH
V
IL
I
IH
I
IL
ts
th
t
PD
tr
tf
Full-scale voltage of channel
Average of the full-scale voltage of the channels
Electrical Characteristics Measurement Circuit
Analog Input Resistance
Measurement Circuit
Digital Input Current
+5.25V
AV
DD
, DV
DD
A
CXD2309AQ
V
AV
SS
, DV
SS
–5–
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