Datasheet CXD2309Q Datasheet (Sony)

—1—

E94341B01

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.

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage AVDD, DVDD 7V

•Input voltage (All pins)

VIN VDD+0.5 to VSS–0.5 V

• Output current IOUT 0 to 15 mA

• Storage temperature

Tstg –55 to +150 °C

Recommended Operating Conditions

• Supply voltage AVDD, AVSS 4.75 to 5.25 V

DVDD, DVSS 4.75 to 5.25 V

• Reference input voltage VREF 0.5 to 2.0 V

• Clock pulse width TPW1, TPW0 9 (min.) ns

• Operating temperature Topr –20 to +85 °C

Description

The CXD2309Q 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 ±0.5 LSB

• Low power consumption 275 mW

(200 Ω load for 2 Vp-p output)

• Single +5 V power supply

• Low glitch

• 48-pin QFP package

Structure

Silicon gate CMOS IC

10-bit 85MSPS 3-Channel D/A Converter

48 pin QFP (Plastic)

CXD2309Q

—2—

CXD2309Q

Block Diagram

DECODER

LATCHES

4LSB’S

CURRENT

CELLS

DECODER

LATCHES

6LSB’S

CURRENT

CELLS

CLOCK

GENERATOR

4LSB’S

CURRENT

CELLS

6LSB’S

CURRENT

CELLS

CLOCK

GENERATOR

DECODER

LATCHES

4LSB’S

CURRENT

CELLS

6LSB’S

CURRENT

CELLS

CLOCK

GENERATOR

1 2 3

4 5 6

7 8 9

10

11 12 13 14 15 16 17 18 19 20

31

32

33

48

21 22 23 24 25 26 27 28 29 30

35

34

CURRENT CELLS

(FOR FULL SCALE)

BIAS VOLTAGE

GENERATOR

43 42

44

45

46

47

41 40 39

38

37

36

(LSB) R0

R1 R2 R3 R4 R5 R6 R7 R8

(MSB) R9

RCK

(LSB) G0

G1 G2 G3 G4 G5 G6 G7 G8

(MSB) G9

GCK

(LSB) B0

B1 B2 B3 B4 B5 B6 B7 B8

(MSB) B9

BCK

DV

DD

VB

DV

SS

AVSS RO

AV

SS

GO

AV

SS

BO

AV

DD

AVDD AVDD

VG

VREF

IREF

—3—

CXD2309Q

Pin Configuration

2 31 4 5 6 7 8 9

10 11 12

22

23

24

21 20 19 18 17 16 15 14 13

35 34 33 32 31 30 29 28 27 26 2536

46

45

44

43

42

41

40

39

38

47 48

37

(LSB) R0

R1

R2

R3

R4

R5

R6

R7

R8

(MSB) R9

(LSB) G0

G1

IREF

VB

DV

SS

BCK

GCK

RCK

B9 (MSB)

B8

B7

B6

B5

B4

B3 B2 B1 B0 (LSB) G9 (MSB) G8 G7 G6 G5 G4 G3 G2

1

35,48

36 47

to

Digital system Analog system

VG

AV

DD

AVDD AVDD

RO

AV

SS

GO

AV

SS

BO

AV

SS

DVDD

VREF

Pin Description and Equivalent Circuit

Pin No. Symbol I/O Equivalent circuit Description

1 to 10

11 to 20

21 to 30

31

32

33 34

35

R0 to R9

G0 to G9

B0 to B9

RCLK

GCLK

BCLK

DVSS

VB

I

—

O

DVDD

DVSS

33

1

to

Digital input. 1 pin R0 (LSB) to 10 pin R9 (MSB) 11 pin G0 (LSB) to 20 pin G9 (MSB) 21 pin B0 (LSB) to 30 pin B9 (MSB)

Clock input.

Digital ground.

Connect an approximately 0.1µF capacitor.

DVDD

DVSS

35

DVDD

—4—

CXD2309Q

Pin No. Symbol I/O Equivalent circuit Description

36

37

38

39 to 41

42

44

46

43, 45, 47

48

IREF

VREF

VG

AVDD

RO

GO

BO

AVSS

DVDD

O

I

O

—

O

— —

AVDD

AVSS

AVDD

AVSS

37

36

AVDD

AVSS

38

AVDD

AVSS

44 46

42

AVSS

Reference current output. Connect an “RIR” resistor which are 16 times the output resistance “ROUT”.

Reference voltage input. Sets an output full-scale value.

Connect an approximately 0.1µF capacitor.

Analog power supply.

Current output. Output can be obtained by connecting a resistor (200 Ω typ.).

Analog ground. Digital power supply.

—5—

CXD2309Q

Electrical Characteristics (fCLK=85 MHz, AVDD=DVDD=5 V, ROUT=200 Ω, VREF=2.0 V, RIR=3.3 kΩ, Ta=25°C)

Item

Resolution Conversion speed Integral non-linearity error

Differential non-linearity error Precision guaranteed output voltage range Output full-scale voltage Output full-scale ratio

∗1

Output full-scale current Output offset voltage Glitch energy

Crosstalk

SN 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

Symbol

n fCLK EL

ED VOC VFS

FSR IFS VOS GE

CT

SNR

IDD RIN

CI CO VIH VIL IIH IIL ts th tPD tr tf

Measurement conditions

AVDD=DVDD=4.75 to 5.25 V Ta=–20 to +85 °C

Endpoint

When “0000000000” data input ROUT=100 Ω, 1 Vp-p output When 10 MHz FCLK=50 MHz sin wave input FCLK=85 MHz When 1 MHz FCLK=50 MHz sin wave input FCLK=85 MHz When 10 MHz FCLK=50 MHz sin wave output FCLK=85 MHz VREF

AVDD=DVDD=4.75 to 5.25 V Ta=–20 to +75 °C AVDD=DVDD=4.75 to 5.25 V Ta=–20 to +75 °C

Min.

0

–2.0 –0.5

1.8

1.8 0

9.0

40

50

1

2.15

–5

4 1

Typ.

10

1.92

9.6

50 42 40 55 50 48 55

125

14

26.5

26.0

Max.

85

2.0

0.5

2.0

2.0 3

10

1

58

9

0.85 5

Unit

bit

MSPS

LSB LSB

V V

% mA mV

pV•s

dB

mA MΩ

pF pF

V

µA

ns ns ns ns ns

Electrical Characteristics Measurement Circuit Analog Input Resistance

Measurement Circuit

Digital Input Current

CXD2309Q

+5.25V

AVDD, DVDD

AVSS, DVSS

V

A

}

Full-scale voltage of channel

∗1

Full-scale output ratio =

Average of the full-scale voltage of the channels

–1 × 100 (%)

—6—

CXD2309Q

35

31 32 33

42

43 44 45

46 47

38

37

36

2V

10bit

COUNTER

with

LATCH

OSCILLOSCOPE

CLK 50MHz SQUARE WAVE

RO

AV

SS

GO

AV

SS

BO

AV

SS

VG

VREF

IREF

0.1µ

DV

SS

200

AV

SS

AVSS

AVDD

3.3k AV

SS

VB

RCK GCK

BCK

R0 to R9 1 to 10

G0 to G9 11 to 20

B0 to B9 21 to 30

Crosstalk Measurement Circuit

35

31 32 33

42 43 44 45

46 47

37 36

2V

DIGITAL

WAVEFORM

GENERATOR

CLK 50MHz SQUARE WAVE

DV

DD

DVSS

0.1µ

RO

AV

SS

GO

AV

SS

BO

AV

SS

VG

VREF

IREF

200

AV

SS

AVSS

AVDD

0.1µ

AV

SS

3.3k

VB

RCK GCK

BCK

R0 to R9 1 to 10

G0 to G9 11 to 20

B0 to B9 21 to 30

38

SPECTRUM

ANALYZER

Setup Time Hold Time Measurement Circuit Glitch Energy

35

31 32 33

42 43 44 45

46 47

38 37 36

2V

10bit

COUNTER

with

LATCH

DELAY

CONTROLLER

CLK 50MHz SQUARE WAVE

OSCILLOSCOPE

VB

RCK GCK

BCK

DV

SS

0.1µ

RO

AV

SS

GO

AV

SS

BO

AV

SS

VG

VREF

IREF

200

AV

SS

AVSS

AVDD

0.1µ

3.3k AV

SS

DELAY

CONTROLLER

R0 to R9 1 to 10

G0 to G9 11 to 20

B0 to B9 21 to 30

}

Conversion Rate Measurement Circuit

—7—

CXD2309Q

DC Characteristics Measurement Circuit

35

31 32 33

42

43 44 45

46 47

38

37

36

DVM

CLK 50MHz SQUARE WAVE

DV

SS

0.1µ

2V

AV

SS

AVSS

AVDD

AVSS

200

RO

AV

SS

AVSS

GO

BO

VG

VREF

IREF

CONTROLLER

3.3k

R0 to R9 1 to 10

VB

RCK GCK

BCK

G0 to G9 11 to 20

B0 to B9 21 to 30

Propagation Delay Time Measurement Circuit

SNR Measurement Circuit

200

35

31 32 33

42 43 44 45

46 47

38 37 36

10bit

COUNTER

with

LATCH

DELAY

CONTROLLER

DELAY

CONTROLLER

CLK 50MHz SQUARE WAVE

DV

SS

OSCILLOSCOPE

0.1µ

RO

AV

SS

AVSS

GO

BO

VG

VREF

IREF

200 AV

SS

AVSS

200

AVDD

2V

3.3k AV

SS

VB

RCK GCK

BCK

R0 to R9 1 to 10

G0 to G9 11 to 20

B0 to B9 21 to 30

35

31

32

33

42

43 44 45

46 47

38

37

36

DIGITAL

WAVEFORM

GENERATOR

CLK 50MHz SQUARE WAVE

ALL “1”

0.1µ

DV

SS

200

AV

SS

AVSS

AVDD

0.1µ

2V

3.3k AV

SS

RO

AV

SS

AVSS

GO

BO

VG

VREF

IREF

VB

RCK GCK

BCK

R0 to R9 1 to 10

G0 to G9 11 to 20

B0 to B9 21 to 30

SPECTRUM

ANALYZER

—8—

CXD2309Q

Description of Operation

Timing Chart

I/O Correspondence Table (output full-scale voltage: 2.00 V)

CLK

DATA

D/A OUT

tPW1 tPW0

1.5V

t

s th ts th ts th

tPD

tr

100%

50%

0%

90%

tf

10%

1.5V

Input code

MSB LSB

1 1 1 1 1 1 1 1 1 1

:

1 0 0 0 0 0 0 0 0 0

:

0 0 0 0 0 0 0 0 0 0

Output voltage

2.0 V

1.0 V

0 V

—9—

CXD2309Q

Notes on Operation

• Selecting the Output Resistance

CXD2309Q is a current output type D/A converter. The output voltage can be obtained by connecting the resistor ROUT to the current output pins RO, GO and BO. Specifications: Output full-scale voltage VFS = 1.8 to 2.0 [V]

Output full-scale current IFS = 9.0 to 10.0 [mA] Calculate the output resistance from VFS = IFS × ROUT. Connect a resistance sixteen times the output resistance to the reference current output pin IREF. In some cases, as this value may not exist, a similar value can be used instead. Note that the VFS will be the following.

VFS = VREF × 16ROUT/RIR VREF is the voltage set at the reference voltage input pin VREF, ROUT is the resistor to be connected to the current output pins RO, GO, BO and RIR is the resistor to be connected to the IREF. Power consumption can be reduced by increasing the resistance, but this will on the contrary increase the glitch energy and data setting time. Set the best values according to the purpose of use.

• Correlation between Data and Clock For CXD2309Q to display the desired performance as a D/A converter, the data transmitted from outside and the clock must be synchronized properly. Adjust the setup time (ts) and hold time (th) as specified in “Electrical Characteristics”.

• Power supply, ground Separate the analog and digital signals around the device to reduce noise effects. Bypass the power supply pin to each ground with a 0.1 µF ceramics capacitor as near as possible to the pin for both the digital and analog signals.

• Latch up Analog and digital power supplies must be able to share the same power supply of the board. This is to prevent latch up caused by potential difference between the two pins when the power is turned on.

• IREF The IREF pin is very sensitive to improve the AC characteristics. Pay attention for capacitance component not to attach to this pin because its output may become unstable.

• VG pin It is recommended to use a 1 µF capacitor to improve the AC characteristics though the typical capacitance value externally connected to the VG pin is 0.1 µF.

• Output full-scale voltage For the applications using the RGB signal, the color balance may be broken up when the RO, GO and BO output full-scale voltages are used with not adjustment.

—10—

CXD2309Q

• When the power supply (AVDD and DVDD) is 5.0 V.

• R1=200 Ω

• R2=3.3 kΩ

• R3=3.0 kΩ

• R4=2.0 kΩ

• C=0.1 µF

Application Circuit

R2

C

Clock input

B ch input

LSB

G ch input

R ch

input

LSB

R3

R4

C

R1

37 38 39 40 41 42 43 44 45 46 47 48

1 2 3 4 5 6 7 8 9

10 11 12

24 23 22 21 20 19 18 17 16 15 14 13

252627282930313233343536

AVDD

AVSS

DVDD

DVSS

MSB

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.

—11—

CXD2309Q

AVSS

33

C C

31

+5V

DIGITAL IC

DVDD

CXD2309Q

39 40 41

AVDD DVDD

DVSSAVSS

34

48

474543

Latch Up Prevention

The CX2309Q is a CMOS IC which requires latch up precautions. Latch up is mainly generated by the lag in the voltage rising time of AVDD (Pin 39, 40 and 41) and DVDD (Pin 48), when power supply is ON.

1. Correct usage

a. When analog and digital supplies are from different sources

b. When analog and digital supplies are from a common source

(i)

(ii)

CXD2309Q

AVSS

AVDD

39 40 41

AV

DD DVDD

DVSSAVSS

C C

34

+5V +5V

48

DIGITAL IC

DVDD

45 4743

AVSS

C C

+5V

DIGITAL IC

DVDD

CXD2309Q

39 40 41

AV

DD DVDD

DVSSAVSS

34

48

45 4743

—12—

CXD2309Q

2. Example when latch up easily occurs a. When analog and digital supplies are from different sources

b. When analog and digital supplies are from common source

(i)

(ii)

AVSS

AVDD

C C

+5V +5V

DIGITAL IC

DVDD

CXD2309Q

39 40 41

AV

DD DVDD

DVSSAVSS

34

48

474543

AVSS

C C

+5V

DIGITAL IC

DVDD

AVDD

CXD2309Q

39 40 41

AV

DD DVDD

DVSSAVSS

34

48

474543

AVSS

C

+5V

DIGITAL IC

DVDD

AVDD

CXD2309Q

39 40 41

AVDD DVDD

DVSSAVSS

34

48

474543

—13—

CXD2309Q

Example of Representative Characteristics

Fig. 1. Reference voltage vs. Output full-scale voltage

Output full-scale voltage V

FS

[V]

2.0

1.0

Reference voltage VREF [V]

1.0 2.00

Fig. 2. Output resistance vs. Glitch energy

Glitch energy GE [pV•s]

100

50

Output resistance R

OUT [Ω]

100 2000

Fig. 3. Ambient temperature vs. Output full-scale voltage

1.95

1.90

Ambient temperature Ta [°C]

250

Output full-scale voltage V

FS

[V]

–25

0

50 75

∆V=0.02mV/°C

Fig. 4. Output frequency vs. Supply current

50

40

Output frequency Fo [MHz]

Supply current I

DD

[mA]

60

70

sin wave output

20105 30 4021 42

Standard Measurement Conditions

• AVDD=DVDD=5.0 V

• VREF=2.0 V

• FCLK=85 MHZ

• ROUT=200 Ω

• RIR=3.3 kΩ

• Ta=25 °C

—14—

CXD2309Q

Fig. 5. Clock frequency vs. Supply current

Supply current I

DD

[mA]

40

Clock frequency F

CLK [MHz]

20 50

10

20

30

50

60

85

IDD

IA [Analog]

I

D [Digital]

Fig. 6. Clock frequency vs. Supply current

Supply current I

DD

[mA]

40

Clock frequency F

CLK [MHz]

20 50

fout=10MHz sin wave

10

20

30

50

60

85

I

DD

IA [Analog]

I

D [Digital]

Fig. 7. Output frequency vs. Cross talk

Cross talk CT [dB]

40

Output frequency Fo [MHz]

0

sin wave output

10

20

30

50

60

Fig. 8. Output frequency vs. Output level

(Including primary hold characteristics sinx/x)

Output level [dBm]

Output frequency Fo [MHz]

0

–20

–10

0

fout=1MHz sin wave

1 102 5 20 42 1 102 5 20 50

Standard Measurement Conditions

• AVDD=DVDD=5.0 V

• VREF=2.0 V

• FCLK=85 MHZ

• ROUT=200 Ω

• RIR=3.3 kΩ

• Ta=25 °C

—15—

CXD2309Q

SNR [dB]

Output frequency Fo [MHz]

30

40

50

Fig. 9. Output frequency vs. SNR

Input current [µA]

Input voltage [V]

1 60

500

1000

5

Fig. 10. Input terminal V-I characteristics

500

1000

–10 1 102 5 20 50

Standard Measurement Conditions

• AVDD=DVDD=5.0 V

• VREF=2.0 V

• FCLK=85 MHZ

• ROUT=200 Ω

• RIR=3.3 kΩ

• Ta=25 °C

SONY CODE EIAJ CODE JEDEC CODE

M

PACKAGE STRUCTURE

PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL

PACKAGE MASS

EPOXY RESIN SOLDER / PALLADIUM

PLATING 42/COPPER ALLOY

48PIN QFP (PLASTIC)

15.3 ± 0.4

12.0 – 0.1

+ 0.4

0.8

0.3 – 0.1

+ 0.15

0.24

13

24

2536

37

48

1 12

2.2 – 0.15

+ 0.35

0.9 ± 0.2

0.1 – 0.1

+ 0.2

13.5

0.15 – 0.05

+ 0.1

QFP-48P-L04 QFP048-P-1212

0.7g

0.15

Package Outline Unit : mm

CXD2309Q

—16—

Datasheet CXD2309Q Datasheet (Sony) [en, no]