ADSP-BF504 datasheet(55/80 Pages) AD

55 / 80 page

Preliminary Technical Data

Rev. PrC

Page 55 of 80

January 2010

ADSP-BF504/F,ADSP-BF506F

DIGITAL LOGIC OUTPUTS

Output High Voltage, VOH

VDRIVE – 0.2

V min

no DC load (IOH = 0 mA)

Output Low Voltage, VOL

0.4

V max

no DC load (IOL = 0 mA)

Floating State Leakage Current

±1

μA max

VIN = 0V or VDRIVE

Floating State Output Capacitance4

pF typ

Output Coding8

Straight (natural) binary

SGL/DIFF = 1

Twos complement

SGL/DIFF = 0; SGL/DIFF = 1

1 VIN– or VIN+ must remain within GND/VDD.

2 VIN– = 0V for specified performance. For full input range on VIN– pin, see Figure 80 and Figure 81.

3 For full common-mode range, see Figure 76 and Figure 77.

4 Sample tested during initial release to ensure compliance.

5 Relates to Pin DCAPA or Pin DCAPB.

6 See ADC — Terminology on Page 60.

7 External voltage reference applied to Pins DCAPA, Pin DCAPB (VREF)

8 See Table 50 and Table 51.

Table 46. Operating Conditions (ADC Performance/Accuracy)

Parameter

Specification

Unit

Test Conditions/Comments

DYNAMIC PERFORMANCE

Signal-to-Noise Ratio (SNR)

dB min

fIN = 50 kHz sine wave; differential mode

dB min

fIN = 50 kHz sine wave; single-ended and

pseudo differential modes

Signal-to-(Noise + Distortion) Ratio (SINAD)1 70

dB min

fIN = 50 kHz sine wave; differential mode

dB min

fIN = 50 kHz sine wave; single-ended and

pseudo differential modes

Total Harmonic Distortion (THD)

–77

dB max

fIN = 50 kHz sine wave; differential mode

–73

dB max

fIN = 50 kHz sine wave; single-ended and

pseudo differential modes

Spurious-Free Dynamic Range (SFDR)1

–75

dB max

fIN = 50 kHz sine wave

Intermodulation Distortion (IMD)1

fa = 30 kHz, fb = 50 kHz

Second-Order Terms

–88

dB typ

Third-Order Terms

–88

dB typ

Channel-to-Channel Isolation

–88

dB typ

SAMPLE AND HOLD

Aperture Delay2

ns max

Aperture Jitter2

ps typ

Aperture Delay Matching2

200

ps max

Full Power Bandwidth

33/26

MHz typ

@ 3 dB, AVDD, DVDD = 5 V/AVDD, DVDD = 3 V

3.5/3

MHz typ

@ 0.1 dB, AVDD, DVDD = 5 V/AVDD, DVDD = 3 V

Table 45. Operating Conditions (Analog, Voltage Reference, and Logic I/O) (Continued)

Parameter

Specification

Unit

Test Conditions/Comments

ADSP-BF504 Datasheet(PDF) 55 Page - Analog Devices

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