TDA7705 STMicroelectronics, TDA7705 Datasheet - Page 35

• 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
5.1.5
Table 30.
1. Depends only on field strength filter time constant.
2. Means that 100% equivalent 19 kHz AM modulation depth will not achieve full band narrowing.
3. Intermediate filters (#6 - #1) cut-off frequencies exponentially spaced between HCmaxBW and HCminBW.
HCMPtN2W
HCMPtW2N
HCFStW2N
HCFStN2W
HCmaxBW
HCminBW
HCnumFilt
HCMPsp
HCMPep
HCFSsp
HCFSep
Symbol
High cut control
High cut control
(continuous set)
Start point vs. field strength
End point vs. field strength
Field strength-related
transition time from wide to
narrow band
Field strength-related
transition time from narrow to
wide band
Start point vs. multipath
End point vs. multipath
Multipath -related transition
time from narrow to wide
band
Multipath -related transition
time from wide to narrow
Maximum cut-off frequency of
high cut filter bank
Minimum cut-off frequency of
high cut filter bank
Number of discrete HC filters
Parameter
minimum RF level for widest
HC filter (filter # 7)
no multipath present
maximum RF level for
narrowest HC filter (filter # 0)
no multipath present
V
60 dBµV to 10 dBµV
V
0 dBµV to 60 dBµV
minimum RF level for widest
HC filter (filter # 7)
equivalent 19 kHz AM
modulation depth;
field strength = 80 dBµV
maximum RF level for
narrowest HC filter (filter # 0)
equivalent 19 kHz AM
modulation depth;
field strength = 80 dBµV
V
20 dBµV to 80 dBµV
V
80 dBµV to 20 dBµV
Filter #7, -3 dB response
frequency, input signal with
pre-emphasis
Filter #0, -3 dB response
frequency, input signal with
pre-emphasis
-
rf
rf
rf
rf
Doc ID 15938 Rev 8
step-like variation from
step-like variation from
step-like variation from
step-like variation from
Test condition
HCmin
0.001
0.001
Min
BW
0.1
(1)
0
0
5
5
-
Weak signal processing
0.001
0.001
8
Typ
50
30
(1)
14
10
30
14
3
(3)
150
150
HCma
xBW
Max
100
50
40
20
20
18
-
(2)
(2)
Units
dBµV
dBµV
kHz
kHz
%
%
s
s
s
35/42
-
-