TDA7705 STMicroelectronics, TDA7705 Datasheet - Page 33

• Manufacturer Part Number: TDA7705
• Description: IC TUNER HIT AM/FM CAR RAD 64LQF
• Manufacturer: STMicroelectronics

Specifications of TDA7705

• Modulation Or Protocol: AM, FM
• Applications: Automotive Audio
• Current - Receiving: 220mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Frequency: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -

TDA7705
5
5.1
5.1.1
Table 26.
5.1.2
Table 27.
DISS BW
SMtauatt
SMtaurel
Symbol
Symbol
SMsp
SMep
SMd
Weak signal processing
All the parameters in this section refer to the programmability of the DSP part of the device.
The typical values are those set by default parameters (start-up without parametric change
from main µP); the max and the min values refer to the programmability range. The values
are referred to the typical application
application / SPI
programmable values are displayed.
FM IF-processing
Dynamic channel selection filter (DISS)
Dynamic channel selection filter (DISS)
(discrete set)
Soft mute
Soft mute
(continuous set)
IF filter #6
IF filter #5
IF filter #4
IF filter #3
IF filter #2
IF filter #1
IF filter #0
Start point vs. field strength
End point vs. field strength
Depth
Field strength LPF cut-off
frequency for soft mute
activation
Field strength LPF cut-off
frequency for soft mute
release
Parameter
Parameter
control). Wherever the possible values are a discrete set, all the possible
response: - 3dB
audio atten = 1 dB
read “FM_softmute”
no adjacent channel present
audio atten = SMd + 1 dB
read “FM_softmute”
no adjacent channel present
-
-
-
Doc ID 15938 Rev 8
Test condition
Test condition
(Figure 16: Example of FM tuned (narrow-band)
Min
Min
-30
0.1
0.1
-6
0
-
-
-
-
-
-
-
Weak signal processing
±150
±110
Typ
±80
±60
±45
±35
±25
Typ
100
-15
-6
6
1
4000
4000
Max
Max
20
10
0
-
-
-
-
-
-
-
Units
Units
dBµV
dBµV
kHz
kHz
kHz
kHz
kHz
kHz
kHz
dB
Hz
Hz
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