sta33013tr STMicroelectronics, sta33013tr Datasheet - Page 22

• Manufacturer Part Number: sta33013tr
• Description: 2.0 Digital Audio Processor With Ffx Digital Modulator And Analog And Digital Inputs
• Manufacturer: STMicroelectronics

Analog-digital converter (ADC)
7.1.2
7.1.3
7.2
22/55
High-pass filter characteristics
Table 13.
Programmable gain amplifier
The programmable gain amplifier (PGA) is available in mic-in mode only. It is possible to
amplify the input signal from 0 to 42 db in steps of 6 db. The setting is done through bits
PGA of register
See
Application scheme
Figure 9
Figure 9.
Frequency response:
Phase deviation at 20 Hz
Pass-band ripple
3-V, 3-A supply
VSSA
-3 dB
-0.08 dB
Table 7 on page 10
AC coupled
DC coupled
AC coupled
DC coupled
shows the filter circuit.
High-pass filter characteristics
Block diagram
VSSA
ADCCFG on page
R1
Parameter
C5
C6
C7
C8
for performance values.
47.
C9
C0
7 Hz
50 Hz
19.35°
0.08 dB
INL
INR
AVDD
AGND
VHI
VLO
VCM
VBIAS
Typical
C5 = 1 µF
C6, C7 = 10 µF
(low ESR and ESL
capacitors are
recommended)
The VSSA plane must
be a different plane to the
other ground planes
The 3-V, 3-A supply
must be low-noise
and separate from
the other supplies
R1 = 500
C8 = 10 µF
C9, C0 = 1 µF (low ESR)
Ω
STA330