TDA7513T Datasheet, PDF (41/59 Pages) STMicroelectronics – SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR

TDA7513T
SUBADDRESS 15: Quality Detection Multipath and Smeter test
MSB
LSB
FUNCTION
D7 D6 D5 D4 D3 D2 D1 D0
ISS Multipath control enabling
0 Multipath control ON
1 Multipath control OFF
ISS Multipath filter center frequncy
0
MP Bandpass frequency 19KHz
1
MP Bandpass frequency 31KHz
ISS Multipath filter input selector (test mode)
0
Smeter unfilt test OFF
1
Smeter unfilt test ON
ISS Multipath threshold
0
0
0.5V
0
1
0.75V
1
0
1V
1
1
1.25V
ISS mode
0
0
Application mode 1
0
1
Application mode 2
ISS Multipath control mode
0
MP control AC+ detection
1
MP control the AC and AC+ detection
SUBADDRESS 16: Quality Detection Deviation
MSB
LSB
FUNCTION
D7 D6 D5 D4 D3 D2 D1 D0
ISS deviation detector ime constant
0
0
0 charge current 34µA; discharge current 6µA
0
0
1 charge current 32µA; discharge current 8µA
0
1
0 charge current 30µA; discharge curren10µA
1
0
0 charge current 26µA; discharge current 14µA
1
1
1 charge current 20µA; discharge current 20µA
ISS deviation detector thresholds
0
0
DEV Threshold for ISS narrow-wide 30KHz
0
1
DEV Threshold for ISS narrow-wide 45KHz
1
0
DEV Threshold for ISS narrow-wide 60KHz
1
1
DEV Threshold for ISS narrow-wide 75KHz
0
0
DEV Threshold for ISS filter OFF ratio 1
0
1
DEV Threshold for ISS filter OFF ratio 1.3
1
0
DEV Threshold for ISS filter OFF ratio 1.4
1
1
DEV Threshold for ISS filter OFF ratio 1.5
0
not used
1
AUX set int80
41/59