TDA8760_技术文档

INTEGRATED CIRCUITS

DATA SHEET

TDA8760

10-bit high-speed analog-to-digital

converter

1996 Sep 12

Product speciﬁcation

Supersedes data of April 1994

File under Integrated Circuits, IC02

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

FEATURES

APPLICATIONS

• 10-bit resolution

• High-speed analog-to-digital conversion for

– Video signal digitizing

• Sampling rate up to 40 MHz

• Total Harmonic Distortion (THD): −65 dB at 4.43 MHz

full-scale and a 40 MHz clock frequency

– High Definition TV (HDTV)

– Digital video broadcasting (satellite and cable)

– Transient signal analysis

• High signal-to-noise ratio over a large analog input

frequency range (8.8 effective bits at 10 MHz full-scale

input at a 40 MHz clock frequency)

– High energy physics research

– Sigma-delta (SD) modulators

– Medical imaging

• +5 V power supplies

• Binary or two’s complement 3-state TTL outputs

• In-range 3-state TTL output

– Radar pulse digitizing.

• TTL compatible digital inputs

GENERAL DESCRIPTION

• LOW-level AC clock input signal allowed

• Power dissipation 850 mW (typical)

The TDA8760 is a monolithic bipolar 10-bit

Analog-to-Digital Converter (ADC) for video or other

applications. It converts the analog input signal into 10-bit

binary coded digital words at a maximum sampling rate of

40 MHz. All digital inputs and outputs are TTL compatible.

However, a sine wave clock input signal is allowed.

• Low analog input capacitance (typ. 4.5 pF), no buffer

amplifier required

• No external sample-and-hold circuit required

• Analog Input; single or differential

• External amplitude range control

• Voltage controlled regulator included.

1996 Sep 12

2

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

QUICK REFERENCE DATA

SYMBOL

PARAMETER

analog supply voltage

CONDITIONS

MIN.

4.75

TYP.

5.0

MAX.

5.25

UNIT

V_CCA

V_CCD

V_CCO

I_CCA

I_CCD

I_CCO

ILE

V

digital supply voltage

output supply voltage

analog supply current

digital supply current

4.75

5.0

95

5.25

100

45

4.75

−

mA

−

40

mA

output supply current

DC integral linearity error

DC differential linearity error

AC integral linearity error

−

35

40

mA

f

_clk= 4 MHz

−

±1.0

±0.6

±1.2

±2.0

±1.0

±2.0

LSB

DLE

AILE

_clk= 4 MHz

−

_clk= 40 MHz;

−

f_i= 4.43 MHz

f_clk(max)

maximum clock frequency

TDA8760K/2

20

40

−

MHz

mW

°C

TDA8760K/4

−

P_tot

total power dissipation

operating ambient temperature

850

−

970

+70

T_amb

0

ORDERING INFORMATION

TYPE

PACKAGE

SAMPLING

FREQUENCY

(MHz)

NUMBER

NAME

DESCRIPTION

VERSION

TDA8760K/2

PLCC44

20

40

plastic leaded chip carrier; 44 leads

SOT187-2

TDA8760K/4

1996 Sep 12

3

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

PINNING

SYMBOL

CLK

DESCRIPTION

1

clock input

CLK

2

complementary clock input

digital supply voltage (+5 V)

digital ground

V_CCD1

DGND1

n.c.

3

4

5

not connected

n.c.

6

not connected

V_CCA1

AGND1

AGND2

V_I

7

analog supply voltage (+5 V)

analog ground

8

9

analog ground

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

analog input voltage

V_I

complementary analog input voltage

analog ground

AGND3

V_CCA2

V_refL

V_refH

AGND4

V_CCA3

n.c.

analog supply voltage (+5 V)

reference voltage LOW

reference voltage HIGH

analog ground

analog supply voltage (+5 V)

not connected

n.c.

not connected

DGND2

V_CCD2

CS

digital ground

digital supply voltage (+5 V)

chip select input (TTL level input; active HIGH)

output two’s complement

output ground

OTC

OGND1

V_CCO1

IR

output supply voltage (+5 V)

in-range output

D9

data output, bit 9 (MSB)

output supply voltage (+5 V)

data output, bit 8

V_CCO2

D8

OGND2

D7

output ground

data output, bit 7

D6

data output, bit 6

D5

data output, bit 5

D4

data output, bit 4

D3

data output, bit 3

D2

data output, bit 2

OGND3

n.c.

output ground

not connected

n.c.

not connected

D1

data output, bit 1

1996 Sep 12

5

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SYMBOL

DESCRIPTION

D0

41

42

43

44

data output, bit 0 (LSB)

output supply voltage (+5 V)

output ground

V_CCO3

V_CCO4

OGND4

handbook, full pagewidth

V

n.c.

7

8

9

39

CCA1

38 n.c.

AGND1

AGND2

37 OGND3

V

I

36

10

11

12

13

14

15

16

17

D2

V

I

35 D3

AGND3

TDA8760

34

D4

V

33 D5

CCA2

V

D6

D7

32

31

30

refL

V

refH

OGND2

AGND4

V

29 D8

CCA3

MGA928-1

Fig.2 Pin configuration for SOT187-2.

1996 Sep 12

6

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

V_CCA

PARAMETER

analog supply voltage

CONDITIONS

MIN.

−0.3

MAX.

+7.0

UNIT

V

V_CCD

V_CCO

∆V_CC1

digital supply voltage

output supply voltage

−0.3

−0.5

+7.0

+0.5

supply voltage difference between

V_CCAand V_CCD

∆V_CC2

∆V_CC3

supply voltage difference between

V_CCOand V_CCD

−0.5

+0.5

0.5

V

supply voltage difference between

V_CCAand V_CCO

V_I

input voltage

referenced to AGND

0.3

V_CCA

V_CCD

V

V_I(p-p)

input voltage for differential clock

drive (peak-to-peak value)

−

I_O

output current

−

10

mA

°C

T_stg

T_amb

T_j

storage temperature

operating ambient temperature

junction temperature

−55

0

+150

+70

+150

−

HANDLING

Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is

desirable to take normal precautions appropriate to handling integrated circuits.

THERMAL CHARACTERISTICS

SYMBOL

R_{th j-a}

PARAMETER

Thermal resistance from junction to ambient in free air

TDA8760K/4

THERMAL RESISTANCE

35 K/W

46 K/W

TDA8760K/2

1996 Sep 12

7

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

CHARACTERISTICS

V

_CCA= V_CCD= V_CCO= 4.75 to 5.25 V; AGND and DGND shorted together;

_CCA− V_CCD= V_CCO− V_CCD= V_CCA− V_CCO= −0.25 to +0.25 V; T_amb= 0 to +70 °C; unless otherwise speciﬁed.

V

Typical values measured at V_CCA= V_CCD= V_CCO= 5 V; T_amb= 25 °C.

SYMBOL

Supplies

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

V_CCA

V_CCD

V_CCO

I_CCA

analog supply voltage

digital supply voltage

output supply voltage

analog supply current

digital supply current

output supply current

4.75

5.0

5.25

V

4.75

−

5.0

95

5.25

100

45

mA

I_CCD

−

40

I_CCO

all outputs LOW

−

35

40

Inputs

CLK AND CLK (REFERENCED TO DGND); note 1

V_IL

V_IH

I_IL

LOW level input voltage

HIGH level input voltage

LOW level input current

HIGH level input current

0

−

0.8

V_CCD

−

V

2.0

−400

−

V

V_clkor V_clk= 0.4 V

V_clkor V_clk= 2.0 V

V_clkor V_clk= V_CCD

f_clk= 40 MHz

−

mA

kΩ

pF

V

I_IH

−

100

300

−

Z_I

input impedance

input capacitance

−

2

C_I

f_clk= 40 MHz

−

4.5

−

∆V_clk

AC input voltage for

switching (V_clk− V_clk)

DC level = 1.5 V

DC level = 2.5 V

0.5

1.5

2.0

5.0

−

V

OTC AND CS (REFERENCED TO DGND); see Table 3

V_IL

V_IH

I_IL

LOW level input voltage

HIGH level input voltage

LOW level input current

HIGH level input current

0

−

0.8

V_CCD

−

V

2.0

−400

−

V

V_IL= 0.8 V

V_IH= 2.0 V

µA

I_IH

20

1996 Sep 12

8

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

V_IAND V_I(REFERENCED TO AGND); see also Tables 1 and 2

I_IL

LOW level input current

HIGH level input current

input impedance

V

_refH− V_refL= 1.5 V

−

7

−

µA

I_IH

V

22

2

µA

kΩ

pF

Z_I

f_i= 4.43 MHz

C_I

input capacitance

4.5

V_Ioffset(d)

input offset voltage

differential mode; V_I= V_I;

output code 511; Table 1

V

_CCA= 5 V

3.3

3.2

3.3

3.4

−

3.6

V

_CCA= 4.75 V

3.45

3.8

V_CCA= 5.25 V

−

V_Ioffset(s)

input offset voltage

single mode; V_I= V_Ioffset(s)

;

output code 511; Table 2

V_CCA= 5 V

3.6

3.5

3.6

3.7

−

3.8

V

_CCA= 4.75 V

3.65

4.0

V_CCA= 5.25 V

−

Voltage controlled regulator inputs V_refHand V_refL(referenced to AGND); differential input

V_refH

V_refL

reference voltage HIGH

reference voltage LOW

4.0

2.5

1.4

4.5

3.0

1.5

V_CCA

3.5

V

V_I(p-p)

input voltage amplitude

(peak-to-peak value)

1.6

I_refH

I_refL

input current at V_refH

input current at V_refL

−

10

−

µA

Voltage controlled regulator inputs V_refHand V_refL(referenced to AGND); single input

V_refH

V_refL

reference voltage HIGH

reference voltage LOW

4.0

2.5

1.3

4.4

3.0

1.4

V_CCA

3.5

V

V_I(p-p)

input voltage amplitude

(peak-to-peak value)

1.5

I_refH

I_refL

input current at V_refH

input current at V_refL

−

10

−

µA

Outputs (referenced to DGND)

DIGITAL OUTPUTS D9 TO D0 AND IR (REFERENCED TO DGND)

V_OL

V_OH

I_O

LOW level output voltage

HIGH level output voltage

I_O= 2 mA

0

−

0.4

V

I_O= −0.4 mA

0.4 V < V_O< V_CCO

2.4

−20

V_CCD

+20

V

output current in 3-state

mode

µA

1996 Sep 12

9

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Switching characteristics

CLOCK FREQUENCY f_clk(note 1; see Fig.3)

f_clk(min)

f_clk(max)

minimum clock frequency

maximum clock frequency

TDA8760K/4

−

1

MHz

40

20

10

8

−

MHz

ns

TDA8760K/2

t_CPH

t_CPL

clock pulse width HIGH

clock pulse width LOW

note 7

ns

Analog signal processing in differential input mode; see Table 1; 50% clock duty factor;

_I(p-p)= V_refH− V_refL= 1.5 V

V

LINEARITY

ILE

DC integral linearity error

DC differential linearity error

AC integral linearity error

offset error

f_clk= 4 MHz

_clk= 4 MHz

note 3

−

±1.0

±0.6

±1.2

−

±2.0

±1.0

±2.0

+3

LSB

DLE

AILE

OFE

f

V_CCA= V_CCD= V_CCO= 5 V; −3

V_I= V_I; T_amb= 25 °C;

output code = 511

GE

gain error; amplitude spread

between devices

V

T

V

_CCA= V_CCD= V_CCO= 5 V; −10

_amb= 25 °C;

_refH− V_refL= 1.5 V

−

+10

LSB

BANDWIDTH (f_clk= 40 MHZ); note 9

Analog bandwidth

B

−1 dB

−3 dB

−

140

220

−

MHz

HARMONICS (f_clk= 40 MHZ); see Figs 6, 8 and 9

f₁

fundamental harmonics

(full scale)

f_i= 4.43 MHz

−

0

dB

f_all

harmonics (full scale);

all components

f_i= 4.43 MHz

second harmonics

third harmonics

−

−70

−65

−63

−60

dB

THD

total harmonic distortion

f_i= 4.43 MHz; note 2

SIGNAL-TO-NOISE RATIO; notes 4 and 5; see Figs 6, 8 and 9

SNR

signal-to-noise ratio

without harmonics;

_clk= 40 MHz;

54

56

−

dB

f

f_i= 4.43 MHz; T_amb= 25 °C

1996 Sep 12

10

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

EFFECTIVE BITS; notes 4 and 5; see Figs 6, 8 and 9

EB

effective bits

TDA8760K/2 (f_clk= 20 MHz)

f_i= 4.43 MHz

−

8.90

−

bits

f_i= 7.5 MHz

f_i= 4.43 MHz

f_i= 10 MHz

f_i= 15 MHz

8.70

8.80

8.70

bits

effective bits

TDA8760K/4 (f_clk= 40 MHz)

TWO-TONE

Two-tone two-tone intermodulation

rejection

f_clk= 40 MHz; note 8

−

−65

−

dB

BIT ERROR RATE

BER

bit error rate

f_clk= 40 MHz;

2 × 10⁻¹²

times/

f_i= 4.43 MHz; V_I= ±16 LSB

at code 512

samples

DIFFERENTIAL GAIN; SEE Fig.5

G_diff

differential gain

f_clk= 20 MHz; f_i= 4.43 MHz

−

0.5

1.0

−

%

f

_clk= 40 MHz; f_i= 4.43 MHz

DIFFERENTIAL PHASE

Φ_diff

differential phase

f_clk= 40 MHz; f_i= 4.43 MHz

−

0.1

0.2

deg

Analog signal processing in single input mode; see Table 2; 50% clock duty factor; V_I(p-p)= V_refH− V_refL= 1.4 V

LINEARITY

ILE

DC integral linearity error

f_clk= 4 MHz

−

±1.0

±0.6

±1.2

±2.0

±1.0

±2.0

LSB

DLE

AILE

DC differential linearity error f_clk= 4 MHz

AC integral linearity error

note 3

BANDWIDTH (f_clk= 40 MHZ); note 9

Analog bandwidth

B

−1 dB

−3 dB

−

140

220

−

MHz

HARMONICS (f_clk= 40 MHZ); see Fig.7

f₁

fundamental harmonics

(full scale)

f_i= 4.43 MHz

−

0

dB

f_all

harmonics (full scale);

all components

second harmonics

third harmonics

−

−61

−62

−59

−

dB

THD

total harmonic distortion

f_i= 4.43 MHz; note 2

1996 Sep 12

11

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

SIGNAL-TO-NOISE RATIO; notes 4 and 5; see Fig.7

SNR

signal-to-noise ratio

without harmonics;

f_clk= 40 MHz;

54

56

−

dB

f_i= 4.43 MHz; T_amb= 25 °C

EFFECTIVE BITS; notes 4 and 5; see Fig.7

EB

effective bits

TDA8760K/2 (f_clk= 20 MHz)

f_i= 4.43 MHz

f_i= 7.5 MHz

f_i= 4.43 MHz

f_i= 10 MHz

−

8.70

8.50

8.20

−

bits

effective bits

TDA8760K/4 (f_clk= 40 MHz)

TWO-TONE

Two-tone two-tone intermodulation

rejection

f_clk= 40 MHz; note 8

−

−60

−

dB

BIT ERROR RATE

BER

bit error rate

f_clk= 40 MHz;

2 × 10⁻¹²

times/

f_i= 4.43 MHz; V_I= ±16 LSB

at code 512

samples

DIFFERENTIAL GAIN; see Fig.5

G_diff

differential gain

f_clk= 20 MHz; f_i= 4.43 MHz

−

0.5

1.0

−

%

f

_clk= 40 MHz; f_i= 4.43 MHz

DIFFERENTIAL PHASE

Φ_diff

differential phase

f_clk= 40 MHz; f_i= 4.43 MHz

−

0.1

0.2

deg

Timing (note 6; see Fig.3; CL = 15 pF)

t_ds

t_h

sampling delay time

output hold time

−

8

−

2

ns

−

t_d

output delay time

12

16

3-state output delay times (see Fig.4)

t_dZH

t_dZL

t_dHZ

t_dLZ

enable HIGH

enable LOW

disable HIGH

disable LOW

−

12

8

16

12

20

ns

16

1996 Sep 12

12

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

Notes

1. The circuit has two clock inputs: CLK and CLK. There are three modes of operation:

a) TTL mode 1:

CLK input is at TTL level with a threshold voltage of 1.5 V and sampling is taken on the falling edge of the clock

input signal. CLK decoupled to DGND via a 100 nF capacitor.

b) TTL mode 2:

CLK input is at TTL level with threshold voltage of 1.5 V and sampling is taken on the rising edge of the clock

input signal. CLK decoupled to DGND via a 100 nF capacitor.

c) TTL mode 3:

CLK and CLK inputs are at differential TTL levels.

d) AC driving modes:

When driving the CLK input directly and with any AC signal of minimum 0.5 V (p-p) and with a DC level of 1.5 V,

the sampling takes place at the falling edge of the clock signal.

When driving the CLK input with the same signal, sampling takes place at the rising edge of the clock signal.It is

recommended to decouple the CLK or CLK input to DGND via a 100 nF capacitor.

2. THD (total harmonic distortion) is obtained with the addition of the first five harmonics:

F

a) THD = 20 log---------------------------------------------------------------------------------------------------------------

2

(2nd) + (3rd) + (4th) + (5th) + (6th)

b) F being the fundamental harmonic referenced at 0 dB for a full-scale sine wave input.

3. AC linearity: full-scale differential sine wave (f_i= 4.43 MHz; f_clk= 40 MHz).

4. Effective bits with differential input and single input are respectively executed with full scale differential input and

full-scale single sine wave.

5. Effective bits are obtained via a Fast Fourier Transformer (FFT) treatment taking 8K acquisition points per period.

The calculation takes into account all harmonics and noise up to half of the clock frequency (NYQUIST frequency).

Conversion to SNR: SNR = EB × 6.02 + 1.76 dB.

6. Output data acquisition: the output data is available after the maximum delay of t_d.

7. t_CPHof 9 ns (minimum) can be applied at the penalty of 0.5 effective bit drop compared to typical values.

8. Intermodulation measured relative to either tone with analog input frequencies of 4.43 MHz and 4.53 MHz. The two

input signals have the same amplitude and the total amplitude of both signals provides full-scale to the converter.

9. The −3 dB (or −1 dB) analog bandwidth is determined by the 3 dB (or 1 dB) reduction in the reconstructed output,

the input being a full-scale sine wave.

1996 Sep 12

13

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

Table 1 Output coding with differential inputs (typical values to AGND); V_I(p-p)= V_refH− V_refL= 1.5 V

TWO’S COMPLEMENT

BINARY OUTPUTS

D9 TO D0

OUTPUTS

CODE

V_I(p-p)

IR

D9 TO D0

underﬂow

<3.025

3.025

−

>3.775

3.775

−

0

1

•

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 1

• • • • • • • • • •

1 0 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0 0 1

• • • • • • • • • •

0

1

•

−

511

3.40

−

3.40

−

1

•

0 1 1 1 1 1 1 1 1 1

• • • • • • • • • •

1 1 1 1 1 1 1 1 1 1

• • • • • • • • • •

•

1022

1023

overﬂow

−

1

0

1 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 1

0 1 1 1 1 1 1 1 1 0

0 1 1 1 1 1 1 1 1 1

3.775

>3.775

3.025

<3.025

Table 2 Output coding with single inputs (typical values to AGND); V_I(p-p)= V_refH− V_refL= 1.4 V; V_I(p-p)= 3.7 V

TWO’S COMPLEMENT

BINARY OUTPUTS

OUTPUTS

CODE

V_I(p-p)

IR

D9 TO D0

underﬂow

<3.0

3.0

−

0

1

•

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 1

• • • • • • • • • •

1 0 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0 0 1

• • • • • • • • • •

0

1

•

−

511

3.7

−

1

•

0 1 1 1 1 1 1 1 1 1

• • • • • • • • • •

1 1 1 1 1 1 1 1 1 1

• • • • • • • • • •

•

1022

1023

overﬂow

−

1

0

1 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 1

0 1 1 1 1 1 1 1 1 0

0 1 1 1 1 1 1 1 1 1

4.4

>4.4

Table 3 Mode selection.

OTC

1

CS

1

D0 TO D9 AND IR

binary; active

0

X⁽¹⁾

1

two’s complement; active

high impedance

0

Note

1. Where: X = don’t care.

1996 Sep 12

14

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

t

CPL

t

CPH

1.4 V

CLK

sample N

sample N + 1

sample N + 2

V

l

t

dS

HD

2.4 V

1.4 V

0.4 V

DATA

D0 to D7

DATA

N - 2

DATA

N - 1

DATA

N

DATA

N + 1

t

d

MBD721

Fig.3 Timing diagram.

V

CCD

full pagewidth

CS

50 %

dZH

t

dHZ

HIGH

90 %

output

data

50 %

LOW

t

dZL

dLZ

HIGH

output

data

50 %

LOW

TEST

S1

V_CCD

GND

10 %

t_dLZ

V

t_dZL

t_dHZ

t_dZH

CCD

3.3 kΩ

15 pF

S1

TDA8760

CS

MBD723

CS = 100 kHz.

Fig.4 Timing diagram and test conditions of 3-state output delay time.

15

1996 Sep 12

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

digital output

CODE 1023

V4

handbook, full pagewidth

f

= 4.43 MHz

i

V

i

(1)

f

= 4.43 MHz

i

V3

V2

V1

V0

(1)

f

= 4.43 MHz

i

(1)

f

= 4.43 MHz

i

(1)

f

= 4.43 MHz

i

(1)

DC offset voltage

CODE 0

MBD722

(1) Full-scale divided-by-5.

V

_n(1 to 4) – V0

G_diff= maximum of ------------------------------------------ × 100%

V0

Fig.5 Differential gain measurement conditions.

MBD223 - 1

MGA931 - 2

9.0

f

= 20 MHz

effective

bits

clk

effective

bits

f

= 20 MHz

40 MHz

clk

40 MHz

8.8

8.6

8.4

8.2

8.0

8.8

8.6

8.4

8.2

8.0

0

2

4

6

8

10

(MHz)

0

4

8

12

16

f

20

(MHz)

f

i

Fig.6 Typical effective bits under differential input

mode as a function of input signal

frequency.

Fig.7 Typical effective bits under single input

mode as a function of input signal

frequency.

1996 Sep 12

16

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

MRC299

0

amplitude

(dB)

–20.2

–40.4

–60.6

–80.8

–101

–121

0

1.25

2.50

3.75

5.00

6.25

7.50

8.75

10.0

f (MHz)

Effective bits: 9.1; THD = −65.81 dB;

Harmonic levels (dB): 2nd = −75.54; 3rd = −76.29; 4th = −74.90; 5th = −67.50; 6th = −90.87.

Fig.8 Fast Fourier Transformer (f_clk= 20 MHz; f_i= 4.43 MHz); for differential input mode.

MBD220

0

amplitude

(dB)

–20

–40

–60

–80

–100

–120

0

2.5

5

7.5

10

12.5

15

17.5

20

f (MHz)

Effective bits: 8.92; THD = −65.86 dB;

Harmonic levels (dB): 2nd = −70.92; 3rd = −68.48; 4th = −75.32; 5th = − 81.40; 6th = −72.69.

Fig.9 Fast Fourier Transformer (f_clk= 40 MHz; f_i= 4.43 MHz); for differential input mode.

17

1996 Sep 12

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

INTERNAL PIN CONFIGURATION

V

handbook, full pagewidth

CCA1 CCA2 CCA3

CCD1 CCD2

CLK

1

CLK

2

7

13

17

3

21

V

CCD

V

CCA

V

and

I

10 and 11

V

I

30

kΩ

30

kΩ

AGND

1.5 V

V

CCA

DGND

14

15

V

refL

refH

25 and 43

V

/

CCO1

V

CCO4

AGND

V

CCO3

20

kΩ

31 to 36,

40 and 41

CS

and

22 and 23

1.5 V

data output

bit 7 to 0

OTC

30 and 37

OGND2 /

OGND3

TDA8760

DGND

12

8

9

16

4

20

MGA978

AGND1 AGND2 AGND3 AGND4 DGND1 DGND2

analog ground digital ground

Fig.10 Description of input and output circuitry.

1996 Sep 12

18

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

APPLICATION INFORMATION

100 nF

handbook, full pagewidth

(1)

CLK

5 V

100 nF

differential

analog inputs

IN

D0 (LSB)

D1

100 nF

6

5

4

3

2

1 44 43 42 41 40

4.7

µ

F

4.7 µF

7

39

38

37

36

35

34

33

32

31

30

29

8

9

IN

10

11

12

13

14

15

16

17

D2

D3

D4

D5

D6

D7

TDA8760

100 nF

(2)

(2) (2)

R2 R3

(2)

R1

R4

D8

(3)

18 19 20 21 22 23 24 25 26 27 28

100

nF

100

nF

D9 (MSB)

5 V

100 nF

3 V 4.5 V

100 nF

5 V

output format select

chip select input

MGA979

The analog, digital and output supplies should be separated and decoupled.

(1) Differential clock signals can be applied if required.

(2) R1 and R2 must be determined in order to obtain a middle voltage of 3.4 V; see Table 1.

(3) V_refHand V_refLmust be decoupled to AGND.

Fig.11 Application diagram for differential input mode.

1996 Sep 12

19

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

100 nF

handbook, full pagewidth

(1)

single

analog

input

CLK

5 V

100 nF

IN

D0 (LSB)

D1

100 nF

6

5

4

3

2

1 44 43 42 41 40

7

39

38

37

36

35

34

33

32

31

30

29

8

9

100

nF

IN

10

11

12

13

14

15

16

17

D2

D3

D4

D5

D6

D7

TDA8760

100 nF

(2)

R1

R2

D8

(3)

18 19 20 21 22 23 24 25 26 27 28

100

nF

100

nF

D9 (MSB)

5 V

100 nF

3 V 4.5 V

100 nF

5 V

output format select

chip select input

MGA980

The analog, digital and output supplies should be separated and decoupled.

(1) Differential clock signals can be applied if required.

(2) R1 and R2 must be determined in order to obtain 3.4 V at the transformer; see Table 1.

Adaptation with the single input signal impedance must be taken care of.

(3) V_refHand V_refLmust be decoupled to AGND.

Fig.12 Application diagram for differential input mode using an input transformer.

1996 Sep 12

20

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

100 nF

handbook, full pagewidth

(1)

single

analog

input

CLK

5 V

100 nF

IN

D0 (LSB)

D1

100 nF

6

5

4

3

2

1 44 43 42 41 40

4.7

µ

F

4.7 µF

7

39

38

37

36

35

34

33

32

31

30

29

8

9

IN

10

11

12

13

14

15

16

17

D2

D3

D4

D5

D6

D7

TDA8760

100 nF

(2)

(2) (2)

R2 R3

(2)

R1

R4

D8

(3)

18 19 20 21 22 23 24 25 26 27 28

100

nF

100

nF

D9 (MSB)

5 V

100 nF

3 V 4.5 V

100 nF

5 V

output format select

chip select input

MGA981

The analog, digital and output supplies should be separated and decoupled.

(1) Differential clock signals can be applied if required.

(2) R1 = R3; R2 = R4. R1, R2, R3 and R4 must be determined in order to obtain a middle voltage of 3.7 V; see Table 2.

(3) V_refHand V_refLmust be decoupled to AGND.

Fig.13 Application diagram for single input mode.

1996 Sep 12

21

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

PACKAGE OUTLINE

PLCC44: plastic leaded chip carrier; 44 leads

SOT187-2

e

E

D

y

X

A

39

29

b

p

Z

E

28

40

b

1

w M

44

1

H

E

pin 1 index

A

1

A

4

e

(A )

3

6

18

k

1

β

L

p

k

detail X

7

17

v

M

A

e

Z

D

B

H

v

M

B

D

0

5

10 mm

scale

DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)

(1)

A

min.

A

max.

k

1

max.

Z

E

(1)

1

4

D

UNIT

mm

A

b

D

E

e

H

k

L

p

v

w

y

β

b

D

E

D

E

3

p

1

max. max.

4.57

4.19

0.81 16.66 16.66

0.66 16.51 16.51

16.00 16.00 17.65 17.65 1.22

14.99 14.99 17.40 17.40 1.07

1.44

1.02

0.53

0.33

0.51

0.51 0.25 3.05

0.020 0.01 0.12

1.27

0.05

0.18 0.18 0.10 2.16 2.16

0.007 0.007 0.004 0.085 0.085

o

45

0.180

0.165

0.032 0.656 0.656

0.026 0.650 0.650

0.630 0.630 0.695 0.695 0.048

0.590 0.590 0.685 0.685 0.042

0.057

0.040

0.021

0.013

inches

0.020

Note

1. Plastic or metal protrusions of 0.01 inches maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

EIAJ

95-02-25

97-12-16

SOT187-2

112E10

MO-047AC

1996 Sep 12

22

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

SOLDERING

Introduction

Wave soldering

Wave soldering techniques can be used for all PLCC

packages if the following conditions are observed:

There is no soldering method that is ideal for all IC

packages. Wave soldering is often preferred when

through-hole and surface mounted components are mixed

on one printed-circuit board. However, wave soldering is

not always suitable for surface mounted ICs, or for

printed-circuits with high population densities. In these

situations reflow soldering is often used.

• A double-wave (a turbulent wave with high upward

pressure followed by a smooth laminar wave) soldering

technique should be used.

• The longitudinal axis of the package footprint must be

parallel to the solder flow.

• The package footprint must incorporate solder thieves at

the downstream corners.

This text gives a very brief insight to a complex technology.

A more in-depth account of soldering ICs can be found in

our “IC Package Databook” (order code 9398 652 90011).

During placement and before soldering, the package must

be fixed with a droplet of adhesive. The adhesive can be

applied by screen printing, pin transfer or syringe

dispensing. The package can be soldered after the

adhesive is cured.

Reﬂow soldering

Reflow soldering techniques are suitable for all PLCC

packages.

Maximum permissible solder temperature is 260 °C, and

maximum duration of package immersion in solder is

10 seconds, if cooled to less than 150 °C within

The choice of heating method may be influenced by larger

PLCC packages (44 leads, or more). If infrared or vapour

phase heating is used and the large packages are not

absolutely dry (less than 0.1% moisture content by

weight), vaporization of the small amount of moisture in

them can cause cracking of the plastic body. For more

information, refer to the Drypack chapter in our “Quality

Reference Handbook” (order code 9397 750 00192).

6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal

of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally-

opposite end leads. Use only a low voltage soldering iron

(less than 24 V) applied to the flat part of the lead. Contact

time must be limited to 10 seconds at up to 300 °C. When

using a dedicated tool, all other leads can be soldered in

one operation within 2 to 5 seconds between

270 and 320 °C.

Reflow soldering requires solder paste (a suspension of

fine solder particles, flux and binding agent) to be applied

to the printed-circuit board by screen printing, stencilling or

pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,

thermal conduction by heated belt. Dwell times vary

between 50 and 300 seconds depending on heating

method. Typical reflow temperatures range from

215 to 250 °C.

Preheating is necessary to dry the paste and evaporate

the binding agent. Preheating duration: 45 minutes at

45 °C.

1996 Sep 12

23

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

DEFINITIONS

Data sheet status

Objective speciﬁcation

Preliminary speciﬁcation

Product speciﬁcation

This data sheet contains target or goal speciﬁcations for product development.

This data sheet contains preliminary data; supplementary data may be published later.

This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

LIFE SUPPORT APPLICATION

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

1996 Sep 12

24

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

NOTES

1996 Sep 12

25

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

NOTES

1996 Sep 12

26

Philips Semiconductors

Product speciﬁcation

10-bit high-speed analog-to-digital

converter

TDA8760

NOTES

1996 Sep 12

27

Philips Semiconductors – a worldwide company

Argentina: see South America

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

Tel. +31 40 27 82785, Fax. +31 40 27 88399

Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. +61 2 9805 4455, Fax. +61 2 9805 4466

New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. +64 9 849 4160, Fax. +64 9 849 7811

Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,

Tel. +43 1 60 101, Fax. +43 1 60 101 1210

Norway: Box 1, Manglerud 0612, OSLO,

Tel. +47 22 74 8000, Fax. +47 22 74 8341

Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. +375 172 200 733, Fax. +375 172 200 773

Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,

Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474

Belgium: see The Netherlands

Brazil: see South America

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,

Tel. +48 22 612 2831, Fax. +48 22 612 2327

Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,

51 James Bourchier Blvd., 1407 SOFIA,

Tel. +359 2 689 211, Fax. +359 2 689 102

Portugal: see Spain

Romania: see Italy

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,

Tel. +1 800 234 7381

Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. +7 095 926 5361, Fax. +7 095 564 8323

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,

72 Tat Chee Avenue, Kowloon Tong, HONG KONG,

Tel. +852 2319 7888, Fax. +852 2319 7700

Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. +65 350 2538, Fax. +65 251 6500

Colombia: see South America

Czech Republic: see Austria

Slovakia: see Austria

Slovenia: see Italy

Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. +45 32 88 2636, Fax. +45 31 57 1949

South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,

Tel. +27 11 470 5911, Fax. +27 11 470 5494

Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. +358 615 800, Fax. +358 615 80920

South America: Rua do Rocio 220, 5th floor, Suite 51,

04552-903 São Paulo, SÃO PAULO - SP, Brazil,

Tel. +55 11 821 2333, Fax. +55 11 829 1849

France: 4 Rue du Port-aux-Vins, BP317, 92156 SURESNES Cedex,

Tel. +33 1 40 99 6161, Fax. +33 1 40 99 6427

Spain: Balmes 22, 08007 BARCELONA,

Tel. +34 3 301 6312, Fax. +34 3 301 4107

Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. +49 40 23 53 60, Fax. +49 40 23 536 300

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,

Tel. +46 8 632 2000, Fax. +46 8 632 2745

Greece: No. 15, 25th March Street, GR 17778 TAVROS,

Tel. +30 1 4894 339/911, Fax. +30 1 4814 240

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,

Tel. +41 1 488 2686, Fax. +41 1 481 7730

Hungary: see Austria

India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd.

Worli, MUMBAI 400 018, Tel. +91 22 4938 541, Fax. +91 22 4938 722

Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66,

Chung Hsiao West Road, Sec. 1, P.O. Box 22978,

TAIPEI 100, Tel. +886 2 382 4443, Fax. +886 2 382 4444

Indonesia: see Singapore

Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. +353 1 7640 000, Fax. +353 1 7640 200

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,

209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,

Tel. +66 2 745 4090, Fax. +66 2 398 0793

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, TEL AVIV 61180,

Tel. +972 3 645 0444, Fax. +972 3 649 1007

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,

Tel. +90 212 279 2770, Fax. +90 212 282 6707

Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,

20124 MILANO, Tel. +39 2 6752 2531, Fax. +39 2 6752 2557

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,

252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

Tel. +81 3 3740 5130, Fax. +81 3 3740 5077

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,

MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,

Tel. +82 2 709 1412, Fax. +82 2 709 1415

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,

Tel. +1 800 234 7381

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,

Tel. +60 3 750 5214, Fax. +60 3 757 4880

Uruguay: see South America

Vietnam: see Singapore

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,

Tel. +9-5 800 234 7381

Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. +381 11 825 344, Fax.+381 11 635 777

Middle East: see Italy

For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,

Internet: http://www.semiconductors.philips.com

Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825

SCA51

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed

without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license

under patent- or other industrial or intellectual property rights.

Printed in The Netherlands

537021/1200/02/pp28

Date of release: 1996 Sep 12

Document order number: 9397 750 01092


型号：	TDA8760
厂家：	NXP
描述：	10-bit high-speed analog-to-digital converter 10位高速模拟 - 数字转换器转换器
文件：	总28页 (文件大小：199K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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