ucb1100 NXP Semiconductors, ucb1100 Datasheet - Page 14

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

Philips Semiconductors
6.2.1 Telecom Input Specifications
NOTE: Coding scheme for ADC output data is 2’s complement.
1998 May 08
SINAD
SYMBOL
SYMBOL
SINAD
Advanced modem/audio analog front-end
SBR
SBR
RIP
RES
V
DNL
A
RIP
S
SBR
A
V
A
N
F
R
INTM
ERTI
SUP
TIN
MTI
SIT
STI
ST
TI
0dB
VTI
VTI
HTI
HTI
TI
Figure 11. Telecom Input Frequency Response,
TI
TI
TIS
TI
F
PLT
sample frequency
full scale input voltage
DC bias voltage Tinp / Tinn pins
attenuation step size
number of attenuation steps
maximum attenuation
attenuation error
(accuracy of attenuation setting)
input impedance
total harmonic distortion
+ noise to signal ratio
total harmonic distortion
+ noise to signal ratio
differential non linearity ADC
resolution
pass band ripple, no voice filter
pass band ripple, voice filter activated
stop band rejection,
voice filter activated
stop band rejection
sidetone suppression effectiveness
F
F
F
F
F
PLT
PHT
SHT
VLT
VHT
No Voice Filter
= 0.00016 * F
= 0.018 * F
= 0.42 * F
= 0.6 * F
= 0.05 * F
FREQUENCY (Hz)
PARAMETER
PARAMETER
RIP
TI
ST
ST
ST
ST
ST
F
PHT
SN00136
F
SHT
telecom input path enabled
156 winding resistance
0 dB attenuation setting,
1:1 line transformer with
0 dB attenuation setting
full scale input voltage
–43dBm input voltage
full scale input signal
F
F
VHTI
PLTI
F
SHTI
CONDITIONS
CONDITIONS
Fsig < F
600 line,
< Fsig < F
< Fsig < F
14
<Fsig.<F
VLTI
PHTI
PHTI
SIB
ST
SIB
0dB
VTI
HTI
Figure 12. Telecom Input Frequency Response,
MIN
–0.5
70
32
30
55
20
F
VLT
Voice Filter Enabled
F
VHT
FREQUENCY (Hz)
LIMITS
0.519
TYP
1.4
25
14
RIP
6
2
6
0
TI
Preliminary specification
MAX
0.5
0.6
0.6
10
2
UCB1100
F
PHT
SN00137
F
SHT
UNIT
UNIT
LSB
kHz
dB
dB
dB
k
dB
dB
dB
dB
dB
dB
dB
V
bit
V
p