1995 Dec 08

12

Philips Semiconductors

Preliminary specification

Stereo 1fs data input up-sampling filter with

bitstream continuous dual DAC (BCC-DAC2)

TDA1305T

Notes

1. Measured with a 1 kHz, 0 dB, 18-bit sine wave generated at a sampling rate of 48 kHz. The (THD + N)/S measured

over a bandwidth of 20 Hz to 20 kHz.

2. Measured with a 1 kHz, -60 dB, 18-bit sine wave generated at a sampling rate of 48 kHz. The (THD + N)/S measured

over a bandwidth of 20 Hz to 20 kHz. For 16-bit input signals, the performance is limited to the theoretical maximum.

3. Measured with a 1 kHz, -60 dB, 18-bit sine wave generated at a sampling rate of 48 kHz. The (THD + N)/S measured

over a bandwidth of 20 Hz to 20 kHz and filtered with a A-weighted characteristic. For 16-bit input signals, the

performance is limited to the theoretical maximum.

4. Measured with a sine wave from 20 Hz to 20 kHz generated at a sampling rate of 48 kHz. The (THD + N)/S

measured over a bandwidth of 20 Hz to 20 kHz.

TEST AND APPLICATION INFORMATION

Filter characteristics (theoretical values)

Table 3

Normal speed filter characteristics.

(THD + N)/S total harmonic distortion plus

noise-to-signal ratio

at 0 dB input level;

note 1

−−90

−81

dB

−

0.003

0.009

%

at

−60 dB input level;

note 2

−−44

−40

dB

−

0.63

1.0

%

at

−60 dB input level;

A-weighted; note 3

−−46

−

dB

−

0.5

−

%

at 0 dB input level;

(20 Hz to 20 kHz);

note 4

−−90

−81

dB

−

0.003

0.003

%

S/N

signal-to-noise ratio at

bipolar zero

A weighted;

at code (00000H)

100

108

−

dB

α

cs

channel separation

85

100

−

dB

δV

unbalance between outputs

−

0.2

0.3

dB

dynamic output impedance

−

10

−Ω

output load resistance

3

−−

k

Ω

output load capacitance

−−

200

pF

ITEM

SAMPLE FREQUENCY

RANGE

CONDITIONS

CHARACTERISTICS

Pass band

44.1 kHz

0 to 20 kHz

0

±0.025 dB

32 kHz

14.5 to 15 kHz

−0.15 dB (min.)

Stop band

44.1 kHz

24.1 to 150 kHz

typical

−60 dB (max.)

worst case

−57 dB (max.)

150 kHz to infinity

typical

−57 dB (max.)

worst case

−47 dB (max.)

32 kHz

17 to 17.5 kHz

−40 dB (max.)

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT