CLC5956PCASM datasheet(4/10 Pages) NSC

4 / 10 page

Converter Electrical Characteristics (Continued)

The following specifications apply for AV

CC = DVCC = +5V, 52 MSPS, 50% Encode Clock Duty Cycle, CL = 7 pF. Boldface

limits apply for T

A = Tmin = −40˚C to Tmax = +85˚C, all other limits TA = 25˚C (Notes 2, 3, 4).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

ANALOG INPUTS

(Diff)

Analog Input Resistance

(Differential)

1000

Ω

Analog Input Capacitance

ENCODE INPUTS

Logic Input Low Voltage

3.0

3.5

Logic Input High Voltage

4.0

4.5

Logic Input Low Current

µA

Logic Input High Current

µA

DIGITAL OUTPUTS

Logic Output Low Voltage

0.4

Logic Output High Voltage

2.4

TIMING

smax

Maximum Conversion Rate

MSPS

smin

Minimum Conversion Rate

MSPS

PWH

Pulse Width High

7.7

PWL

Pulse Width Low

7.7

Pipeline Delay (Note 5)

3.0

CLK Cy

Output Propagation Delay

1.6

POWER REQUIREMENTS

Total Operating Supply Current

65 MSPS

123

150

Power Consumption

65 MSPS

615

750

Power Supply Rejection Ratio

Note 1: “Absolute Maximum Ratings” are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional op-

erability under any of these conditions is not necessarily implied. Exposure to maximum ratings for extended periods may affect device reliability.

Note 2: Limits are 100% tested at 25˚C.

Note 3: Typical characteristics are the mean values of the distributions of deliverable converters at 25˚C.

Note 4: Outgoing quality levels are determined from tested parameters.

Note 5: Max pipeline delay rating is based upon product characterization and simulation.

Note 6: The absolute maximum junction (TJmax) temperature for this device is 175˚C. The maximum allowable power dissipation is dictated by TJmax, the

junction-to-ambient thermal resistance (

θJA), and the ambient temperature (TA), and can be calculated using the formula PDmax = (TJmax – TA)/θJA. For the 48-pin

TSSOP,

θJA is 56˚C/W, so PDmax = 2.68W at 25˚C and 1.6W at the maximum operating ambient temperature of 85˚C. Note that the power dissipation of this device

under normal operation will typically be about 625 mW (615 mW quiescent power + 10 mW due to 1 TTL load on each digital output). The values of absolute maximum

power dissipation will only be reached when the CLC5956 is operated in a severe fault condition (e.g., when input or output pins are driven beyond the power supply

voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided.

Typical Performance Characteristics (AV

CC = DVCC = +5V)

SNR and SFDR vs Input Frequency

DS015011-3

SNR and SFDR vs Input Frequency

DS015011-4

SNR and SFDR vs Input Frequency

DS015011-5

CLC5956PCASM Arkusz danych(PDF) 4 Page - National Semiconductor (TI)

CLC5956PCASM Arkusz danych(HTML) 4 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10

Arkusz danych Pobierz

Link URL