Philips Semiconductors
12-bit, 3.0 V, 30 Msps analog-to-digital
interface for CCD cameras
Objective specification
TDA9964
FEATURES
• Correlated Double Sampling (CDS), Programmable
Gain Amplifier (PGA), 12-bit Analog-to-Digital
Converter (ADC) and reference regulator included
• Fully programmable via a 3-wire serial interface
• Sampling frequency up to 30 MHz
• PGA gain range of 24 dB (in steps of 0.1 dB)
• Low power consumption of only 205 mW at 2.7 V
• Power consumption in standby mode of 4.5 mW (typ.)
• 3.0 V operation and 2.5 to 3.6 V operation for the digital
outputs
• All digital inputs accept 5 V signals
• Active control pulses polarity selectable via serial
interface
• 8-bit DAC included for analog settings
• TTL compatible inputs, CMOS compatible outputs.
APPLICATIONS
• Low-power, low-voltage CCD camera systems.
GENERAL DESCRIPTION
The TDA9964 is a 12-bit analog-to-digital interface for
CCD cameras. The device includes a correlated double
sampling circuit, PGA, clamp loops and a low-power 12-bit
ADC together with its reference voltage regulator.
The PGA gain and the ADC input clamp level are
controlled via the serial interface.
An additional DAC is provided for additional system
controls; its output voltage range is 1.0 V p-p, which is
available at pin OFDOUT.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
VCCA
analog supply voltage
2.7
VCCD
digital supply voltage
2.7
VCCO
digital outputs supply voltage
2.5
ICCA
analog supply current
all clamps active
−
ICCD
digital supply current
−
ICCO
digital outputs supply current
fpix = 30 MHz; CL = 10 pF; input −
ramp response time is 800 µs
ADCres ADC resolution
−
Vi(CDS)(p-p) maximum CDS input voltage (peak-to-peak VCC = 2.85 V
650
value)
VCC ≥ 3.0 V
800
fpix(max) maximum pixel frequency
30
fpix(min) minimum pixel frequency
tbf
DRPGA PGA dynamic range
−
Ntot(rms) total noise from CDS input to ADC output PGA gain = 0 dB; see Fig.8
−
Ein(rms) equivalent input noise (RMS value)
gain = 24 dB
−
Ptot
total power consumption
VCCA = VCCD = VCCO = 3 V
−
VCCA = VCCD = VCCO = 2.7 V
−
3.0 3.6
3.0 3.6
2.7 3.6
71 −
4−
1−
12 −
−−
−−
−−
−−
24 −
1.5 −
70 −
230 −
205 −
V
V
V
mA
mA
mA
bits
mV
mV
MHz
MHz
dB
LSB
µV
mW
mW
ORDERING INFORMATION
TYPE NUMBER
TDA9964HL
NAME
LQFP48
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm
VERSION
SOT313-2
2000 May 02
2