TDA7513T Datasheet, PDF (16/59 Pages) STMicroelectronics – SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR

TDA7513T
Table 26. Noise Blanker (continued)
Symbol
Parameter
Test Condition
VRECTADJ Noise Rectifier
Signal PEAK in
discharge adjustment 6) Testmode
NRD = 00 6)
NRD = 01 6)
NRD = 10 6)
NRD = 11 6)
SRPEAK Noise Rectifier Charge Signal PEAK in
Testmode
PCH = 0 7)
PCH = 1 7)
VADJMP
Noise Rectifier
adjustment through
Multipath 8)
Signal PEAK in
Testmode
MPNB = 00 8)
MPNB = 00 8)
MPNB = 00 8)
MPNB = 00 8)
Min.
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
Typ.
0.3
0.8
1.3
2
10
20
0.3
0.5
0.7
0.9
Max.
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
Unit
V/ms
V/ms
V/ms
V/ms
mV/µs
mV/µs
V/ms
V/ms
V/ms
V/ms
(c) = by design/characterization functionally guaranteed through dedicated test mode structure
(0) = All Thresholds are measured using a pulse with TR =2ms,THIGH = 2ms and TF = 10ms. The repetition rate must not icrease the PEAK
voltage.
1) NBT represents the Noiseblanker Byte bits D2, D0 for the noise blanker trigger threshold
2) NAT represents the Noiseblanker Byte bit pair D4, D3 for the noise controlled triggeradjustment
3) OVD represents the Noiseblanker Byte bit pair D7, D6 for the over deviation detector
4) FSC represents the Fieldstrength Byte bit pair D1, D0 for the fieldstrength control
5) BLT represents the Speaker RR Byte bit pair D7, D6 for the blanktime adjustment
6) NRD represents the Configuration-Byte bit pair D1, D0 for the noise rectifier discharge-adjustment
7) PCH represents the Stereodecoder-Byte bit D5 for the noise rectifier charge-current adjustment
8) MPNB represents the HighCut-Byte bit D7 and the Fieldstrength-Byte D7 for the noise rectifier multipath adjustment
4.5 MULTIPATH AND QUALITY DETECTORS
Table 27. Multipath And Quality Detectors
Symbol
Parameter
Test Condition
fCMP
Center Frequency of Multipath- Stereodecoder locked on Pilottone
Bandpass
GBPMP Bandpass Gain
bits D₂, D₁ configuration byte = 00
bits D₂, D₁ configuration byte = 10
bits D₂, D₁ configuration byte = 01
bits D₂, D₁ configuration byte = 11
GRECTMP Rectifier Gain
bits D₇, D₆ configuration byte = 00
bits D₇, D₆ configuration byte = 01
bits D₇, D₆ configuration byte = 10
bits D₇, D₆ configuration byte = 11
ICHMP Rectifier Charge Current
bit D₅ configuration byte = 0
bit D₅ configuration byte = 1
IDISMP Rectifier Discharge Current
Min.
0.5
Typ. Max. Unit
19
kHz
6
dB
12
dB
16
dB
18
dB
7.6
dB
4.6
dB
0
dB
off
0.5
µA
1
µA
1
1.5 mA
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