TC1912 Datasheet, PDF (43/68 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1912
PRELIMINARY
Codec ADC and DAC path characteristics
Parameters
min. typ. max. Unit
Test conditions¹⁾
Attenuation distortion
(ref. freq. 1014 Hz)
(ref. level 0dBm0)²⁾
0
-0.25
-0.25
-0.25
0
0.25
0.45
dB ^{< 0.025}
dB ^0.025-0.0375
dB ^0.0375-0.3
dB ^0.3-0.425
dB ^{> 0.425}
Signal to total distor-
tion
-55 -45 dB at 0dBm0
Gain tracking
-0.3
(ref. freq. 1014 Hz)
-0.6
(ref. level 0dBm0)²⁾
-1.6
0.3 dB +3 to -40 dBm0
0.6 dB -40 to -50 dBm0
1.6 dB -50 to -55 dBm0
Idle channel noise
-80 -75 dBm receive &transmit
0
Cross talk
-80 -75 dB
Harmonic distortion
-60 -50 dB at 0dBm0
Gain
(ref. freq. 1014 Hz)
(ref. level 0dBm0)²⁾
-0.8 0
0.8 dB receive &transmit
Power supply
-
rejection ratio (PSRR)
-60
-35
dB
Receive (0.0375-0.425)³⁾
-40
-35
dB
Transmit(0.0375-0.425)³⁾
1) _{Values given in this table are valid for all sampling frequencies.}
2) _{0dBm0 is equivalent to -12dBm is equal to 194.7 mVRMS.}
3) _{Supply ripple 70 mV.}
Note: Numbers without units in the test conditions column are relative frequency values
to the chosen sampling frequency. e.g. 0.425 equals 3.4 kHz @ 8 kHz sampling
frequency.
Data Sheet
39
V 1.0, 2003-10