STEVAL-CCA018V1 STMicroelectronics, STEVAL-CCA018V1 Datasheet - Page 8

• Manufacturer Part Number: STEVAL-CCA018V1
• Description: EVAL BOARD A/D TS4657
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-CCA018V1

• Design Resources: STEVAL-CCA018V1 BOM STEVAL-CCA018V1 Schematic
• Featured Product: STM32 Cortex-M3 Companion Products
• Main Purpose: Audio, Audio Processing
• Embedded: No
• Utilized Ic / Part: TS4657
• Primary Attributes: I²S, Right- or Left- Justified
• Secondary Attributes: 3 V ~ 5.5 V Supply
• Interface Type: I2C
• Operating Supply Voltage: 3 V to 5.5 V
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TS4657
• Other names: 497-10735

Electrical characteristics
Table 7.
1. See timing diagram in application information.
3.3.1
8/26
Symbol
THD+N
PSRR
LRiso
SNR
DR
V
t
wu
oo
Dynamic range; A-weighted
16-bit data; measured at -60 dBFS, F
Signal-to-noise ratio, F
output
Total harmonic distortion and noise. Fin = 1 kHz
Power supply rejection ratio, Vripple = 200 mVpp
Channel separation. 1 kHz, Vin at 0 dBFS
Output offset voltage
Gain channel balance
Wake-up time
V
Terminology
SNR: signal-to-noise ratio is expressed in dB. The theoretical formula is:
where V
signal.
For unweighted measurements, the SNR is given by:
where v
(20 Hz, 20 kHz).
For A-weighted measurements:
where v
V
V
V
V
V
V
F= 217 Hz
F= 1 kHz
20 Hz < F < 20 kHz
CC
in
in
in
in
in
in
at -6 dBFS; A-weighted, 18-bit data input
at -6 dBFS; unweighted, 18-bit data input
at 0 dBFS; A-weighted, 16-bit data input
at -20 dBFS
at -6 dBFS
at 0 dBFS
= 5 V, Rload = 10 kΩ, Cload = 100 pF, T = 25° C (unless otherwise specified)
noise
noise
noise
(1)
is the noise spectral density and u(f) is the unweighted filter transfer function
is the noise spectral density and A(f) is the A-weighted filter transfer function.
is the integrated noise from 20 Hz to 20 kHz and VH
S
= 48 kHz, F
Parameter
SNR
SNR
dB
dB
in
A
S
= 1 kHz, referred to
SNR
=
=
= 48 kHz, F
10
10
dB
log
log
=
----------------------------------------------------------------------
∫
---------------------------------------------------------------------- -
∫
10
20kHz
20Hz
20kHz
20Hz
in
log
= 1 kHz
⎛
⎜
⎝
------------------ -
V
u f ( ) v
A f ( ) v
VH
noise
VH
VH
(
1
(
2
1
1
noise
2
2
noise
2
⎞
⎟
⎠
Min.
-0.2
-20
88
89
74
3
f ( )
f ( )
)
)
2
2
f d
1
f d
is the fundamental of the
Typ.
82.5
81.5
0.01
100
4.5
93
95
93
93
72
80
73
48
Max.
0.2
20
6
TS4657
Unit
mV
ms
dB
dB
dB
dB
dB
dB