Rev. A
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Page 55 of 80
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July 2011
ADSP-BF504/ADSP-BF504F/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 = 0 V or VDRIVE
Floating State Output Capacitance
47
pF typ
Output Coding8
Straight (natural) binary
twos complement
1 VIN– or VIN+ must remain within GND/VDD.
2 VIN– = 0 V for specified performance. For full input range on VIN– pin, see Figure 74 and Figure 75. 4 Sample tested during initial release to ensure compliance.
5 Relates to Pin DCAPA or Pin DCAPB (VREF).
7 External voltage reference applied to Pins DCAPA, Pin DCAPB (VREF)
Table 48. Operating Conditions (ADC Performance/Accuracy)
Parameter
Specification
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
71
dB min
fIN = 14 kHz sine wave; differential mode
69
dB min
fIN = 14 kHz sine wave; single-ended and
pseudo differential modes
Signal-to-(Noise + Distortion) Ratio (SINAD)1 70
dB min
fIN = 14 kHz sine wave; differential mode
68
dB min
fIN = 14 kHz sine wave; single-ended and
pseudo differential modes
Total Harmonic Distortion (THD)
–77
dB max
fIN = 14 kHz sine wave; differential mode
–73
dB max
fIN = 14 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)
1,2fa = 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
11
ns max
50
ps typ
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 47. Operating Conditions (Analog, Voltage Reference, and Logic I/O) (Continued)
Parameter
Specification
Unit
Test Conditions/Comments