ucb1100 NXP Semiconductors, ucb1100 Datasheet - Page 10

• Manufacturer Part Number: ucb1100
• Description: Advanced Modem/audio Analog Front-end
• Manufacturer: NXP Semiconductors

Philips Semiconductors
6.1.1 Audio Input Specifications
NOTE: Coding scheme for ADC output data is 2’s complement.
1998 May 08
SYMBOL
SYMBOL
SNR
THD
ROES
THUD
Advanced modem/audio analog front-end
DNA
SNR
R
SBR
V
V
R
N
G
RIP
G
G
F
E
SBR
INAM
MICP
INPAI
HINE
AGS
EAR
SA
SA
mA
MGAI
MGAI
IA
0dB
IA
Figure 7. Audio Input Path Frequency Response
IA
AI
AI
IA
AI
AI
F
PLA
audio sample frequency
full scale input voltage
DC bias voltage micp input
input impedance
impedance micgnd to vssa1
gain step size
number of gain steps
maximum gain
gain error (accuracy of gain setting)
resolution audio input
differential non linearity audio input ADC
total harmonic distortion
total harmonic distortion
signal to noise ratio
audio input
signal to noise ratio
pass band ripple
stop band rejection
audio input
out of band rejection
audio input
FREQUENCY (Hz)
PARAMETER
PARAMETER
RIP
IA
F
PHA
SN00132
F
SHA
audio input path enabled
audio input path enabled
audio input path enabled
0dB input gain selected
0db input gain selected
0.28Vpp, 1kHz to micp
0.28Vpp, 1kHz to micp
full scale input voltage
1mVpp, 1kHz to micp
1mVpp, 1kHz to micp
46.5dB gain selected
46.5dB gain setting,
F
F
0 dB gain setting,
0 dB gain setting
PLAI
SHAI
CONDITIONS
CONDITIONS
F > 20kHz
10
<Fsig.<20kHz
<Fsig < F
PHAI
MIN
1.3
–1
65
50
70
F
F
F
PLA
PHA
SHA
= 0.00016 * F
= 0.42 * F
= 0.6 * F
LIMITS
TYP
0.28
46.5
t.b.f.
1.4
1.5
25
32
12
0
SA
SA
SA
Preliminary specification
MAX
0.03
100
1.7
0.9
0.1
0.5
26
1
UCB1100
mVrms
UNIT
UNIT
LSB
kHz
V
k
dB
dB
dB
dB
dB
dB
dB
bit
%
%
V
pp