Datasheet

Rev. A | Page 55 of 80 | July 2011
ADSP-BF504/ADSP-BF504F/ADSP-BF506F
DIGITAL LOGIC OUTPUTS
Output High Voltage, V
OH
V
DRIVE
– 0.2 V min No DC load (I
OH
= 0 mA)
Output Low Voltage, V
OL
0.4 V max No DC load (I
OL
= 0 mA)
Floating State Leakage Current ±1 μA max V
IN
= 0 V or V
DRIVE
Floating State Output Capacitance
4
7 pF typ
Output Coding
8
Straight (natural) binary
twos complement
1
V
IN–
or V
IN+
must remain within GND/V
DD
.
2
V
IN–
= 0 V for specified performance. For full input range on V
IN–
pin, see Figure 74 and Figure 75.
3
For full common-mode range, see Figure 70 and Figure 71.
4
Sample tested during initial release to ensure compliance.
5
Relates to Pin D
CAP
A or Pin D
CAP
B (V
REF
).
6
See ADC—Terminology on Page 60.
7
External voltage reference applied to Pins D
CAP
A, Pin D
CAP
B (V
REF
)
8
See Table 52 and Table 53.
Table 48. Operating Conditions (ADC Performance/Accuracy)
Parameter Specification Unit Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR) 71 dB min f
IN
= 14 kHz sine wave; differential mode
69 dB min f
IN
= 14 kHz sine wave; single-ended and
pseudo differential modes
Signal-to-(Noise + Distortion) Ratio (SINAD)
1
70 dB min f
IN
= 14 kHz sine wave; differential mode
68 dB min f
IN
= 14 kHz sine wave; single-ended and
pseudo differential modes
Total Harmonic Distortion (THD)
1
–77 dB max f
IN
= 14 kHz sine wave; differential mode
–73 dB max f
IN
= 14 kHz sine wave; single-ended and
pseudo differential modes
Spurious-Free Dynamic Range (SFDR)
1
–75 dB max f
IN
= 50 kHz sine wave
Intermodulation Distortion (IMD)
1,2
f
a
= 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 Delay
2
11 ns max
Aperture Jitter
2
50 ps typ
Aperture Delay Matching
2
200 ps max
Full Power Bandwidth 33/26 MHz typ @ 3 dB, AV
DD
, DV
DD
= 5 V/AV
DD
, DV
DD
= 3 V
3.5/3 MHz typ @ 0.1 dB, AV
DD
, DV
DD
= 5 V/AV
DD
, DV
DD
= 3 V
Table 47. Operating Conditions (Analog, Voltage Reference, and Logic I/O) (Continued)
Parameter Specification Unit Test Conditions/Comments