CLC5957PCASM/NOPB National Semiconductor, CLC5957PCASM/NOPB Datasheet - Page 5

• Manufacturer Part Number: CLC5957PCASM/NOPB
• Manufacturer: National Semiconductor

Specifications of CLC5957PCASM/NOPB

• Lead Free Status / Rohs Status: Compliant

POWER REQUIREMENTS
I
CC
Symbol
Converter Electrical Characteristics
The following specifications apply for AV
+85˚C, all other limits T
Note 1: “Absolute Maximum Ratings” are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional
operability under any of these conditions is not necessarily implied. Exposure to maximum ratings for extended periods may affect device reliability.
Note 2: These parameters are guaranteed by test.
Note 3: Typical specifications are based on the mean test values of deliverable converters from the first three diffusion lots.
Note 4: Values guaranteed based on characterization and simulation.
Note 5: See page 14, Figure 3 for ENCODE inputs circuit.
Note 6: C
Note 7: The absolute maximum junction (T
TSSOP,
under normal operation will typically be about 650 mW (640 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 CLC5957 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.
junction-to-ambient thermal resistance (
JA
L
Total Operating Supply Current (Note
2)
Power Dissipation (Note 2)
Power Supply Rejection Ratio
= 7pF DATA; 10pF DAV.
is 56˚C/W, so P
D
Parameter
max = 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
A
= 25˚C (Note 3).
JA
), and the ambient temperature (T
J
max) temperature for this device is 175˚C. The maximum allowable power dissipation is dictated by T
CC
= DV
CC
= +5V, 66MSPS. Boldface limits apply for T
Conditions
A
), and can be calculated using the formula P
(Continued)
5
Min
D
max = (T
Typ
128
640
64
A
= T
J
max – T
min
= −40˚C to T
Max
150
750
A
)/
JA
. For the 48-pin
www.national.com
J
max, the
Units
mW
max
mA
dB
=