ucb1200 NXP Semiconductors, ucb1200 Datasheet - Page 20

• Manufacturer Part Number: ucb1200
• Description: Advanced Modem/audio Analog Front-end
• Manufacturer: NXP Semiconductors

Philips Semiconductors
The ADC timing diagrams indicate that in the non-ADC sync mode the ADC result can be read in the SIB frame following
the SIB frame with the ADC start command, if the ADC multiplexer setting is not changed. If the ADC input multiplexer
setting is changed, the ADC result can be read in the second SIB frame following the SIB frame with the ADC start
command.
1998 Jul 22
adc_input_selection
adc_input_selection
adc_start (internal)
Advanced modem/audio analog front-end
adc_ena (internal)
adc_start (internal)
adc_ena (internal)
adc_dat_valid
‘adc start state’
adc_dat_valid
‘adc start state’
adc_data
‘SIB frame’
‘SIB frame’
‘adc state’
adc_data
‘adc state’
Fig.14 ADC timing sequence, non ADC sync mode, no changing ADC input multiplexer settings.
Fig.15 ADC timing sequence, non ADC sync mode, changing ADC input multiplexer settings.
tsibwrite
set adc_ena:1
tsibwrite
set adc_ena:1
wait for start
tadcena
wait for start
tadcena
tracking
tracking
tsibwrite
set adc_start:1
ttrckmin
tsibwrite
set adc_start:1
ttrckmin
tsamdel1
tsamdel2
tsibwrite
set adc_start:0
tsibwrite
20
set adc_start:0
conversion
conversion
tadcconv
tadcconv
read adc result
read adc result
wait for start
wait for start
tracking
tracking
Product specification
UCB1200