Philips TDA8783

2002 Oct 23 11

Philips Semiconductors Product speciﬁcation

40 Msps, 10-bit analog-to-digital

interface for CCD cameras TDA8783

Notes

1. Moreinformation about CDS related signals is available in the following figures: The clamp current for pin CPCDS is

given in Fig. 9, clamp current for pins IND and INP in Fig 10 and for clamp current for pin Vref in Fig 11. The CDS

output amplitude is shown in Fig. 14

2. Noisemeasurement at ADC outputs: the coupling capacitor at the input is connected to ground, so that only the noise

contributionof the front-end is evaluated. The front-end operates at 18 Mpix with a line of 1 024 pixels. The first 40 are

used to run CLPOB and the last 40 to run CLPDM. Data at the ADC outputs is measured during the other pixels.

The differences between the types of codes statistic is then computed; the result is the noise. No quantization noise

is taken into account as no signal is input. Figure15 gives noise figure graphs with signal input.

3. Depending on operating pixel frequency, the output voltage and capacitance must be determined according to the

output delay timings (to(d)), see Fig.5.

ZOFDOUT additional 8-bit control DAC

(OFD) output impedance

−2000 −Ω

OFDOUT OFD output current drive static −−50 µA

ADC clamp control DAC(see Fig.8)

VDACOUT(p-p) ADC clamp 10-bit control DAC

output voltage (peak-to-peak

value)

−1−V

VDACOUT DC output voltage code 0 −1.5 −V

code 1023 −2.5 −V

ZDACOUT ADC clamp control DAC output

impedance

−−250 Ω

IDACOUT DAC output current drive static −−50 µA

OFELOOP maximum offset error of

DAC+ ADC clamp loop code 0 −±5−LSB

code 1023 −±5−LSB

Digital outputs (fCLK = 40 MHz; CL= 20 pF); note 3

VOH HIGH-level output voltage IOH =−1mA V

CCO −0.5 −VCCO V

VOL LOW-level output voltage IOL =1mA 0 −0.5 V

IOZ output current in 3-state mode 0V<V

o<V

CCO −20 −+20 µA

to(h) output hold time 8 −−ns

to(d) output delay time CL=20 pF; VCCO =5V −17 23 ns

CL= 10 pF; VCCO =5V −15 21 ns

CL= 20 pF; VCCO =3V −20 29 ns

CL= 10 pF; VCCO =3V −17 25 ns

CL= 20 pF; VCCO = 2.5 V −22 33 ns

CL= 10 pF; VCCO = 2.5 V −18 28 ns

Serial interface

fSCLK(max) maximum frequency of serial

interface 5−−MHz

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT