GA3203(2000) View Datasheet(PDF) - Gennum -> Semtech
Part Name
Description
Manufacturer
GA3203 Datasheet PDF : 9 Pages
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ELECTRICAL CHARACTERISTICS (CONTINUED)
Conditions: Supply Voltage VB = 1.3VDC, Frequency = 3kHz, Temperature = 25°C
The programmable parameters are adjusted to the following set values unless otherwise specified:
(FC) R1 - Tap 15; (TH) R2 - Tap 15; (GHI) R3 - Tap 0; (CRHI) R4 - Tap 15; (MPO) R5 - Tap 4; (GLO) R6 - Tap 15;
(NOTCH) R7 - Tap 24; (VC) R8 - Tap 23; (Squelch) SW - CLOSED (0).
PARAMETER
SYMBOL
CONDITIONS
AGC - O (R3 - Tap 15, R4 - Tap 0, R6 - Tap 15)
Compression Ratio
Maximum Threshold
Minimum Threshold
Threshold Range
Attack Time
Release Time
CRAGC-O
THMAX
THMIN
∆TH
Ï„ATT-O
Ï„REL-O
VIN = -40 to -25dBV, R5 - Tap15
R5 - Tap15
VIN= -50 to -25dBV (2dB from final value)
Æ’ = 2kHz, R5 - Tap15, R1 - Tap 0
VIN = -25 to -50dBV (2dB from final value)
Æ’ = 2kHz, R5 - Tap15, R1 - Tap 0
SQUELCH
Squelch Expansion Ratio
Squelch Threshold
PRE and POST EMPHASIS
SQEXP
SQTH
VIN = -95 to -92dBV, SW - Open, R2 - Tap 8
SW - Open, R2 - Tap 8
Low Cut Corner Frequency
(Pre-Emphasis)
Low Boost Corner Frequency
(Post-Emphasis)
STATE VARIABLE FILTER
PRE3dB
POST3dB
Minimum Crossover Frequency
Maximum Crossover Frequency
Nominal Crossover Frequency
NOTCH FILTER
FCMIN
FCMAX
FCNOM
R1 - Tap 15
R1 - Tap 0
R1 - Tap 8
Minimum Notch Frequency
Maximum Notch Frequency
Nominal Notch Frequency
Notch Bandwidth
Notch Attenuation
FNMIN
FNMAX
FNNOM
FNBW
FNATTN
R7 - Tap 23
R7 - Tap 0
R7 - Tap 18
R7 - Tap 23
R7 - Tap 23
NOTE 1: Measured at output of Stage B
SUPPORT SOFTWARE
All support software for the GA3203 and the GP523 is
available from Gennum’s website:
www.gennum.com/hip/software
MIN
TYP
MAX UNITS
6.7
7.7
8.7
ratio
-34
-31
-28
dBV
-50
-47
-44
dBV
12
15
18
dB
12
18
24
ms
80
135
200
ms
1.8
2.2
3.0
ratio
-93
-89
-85
dBV
-
1
-
kHz
-
1
-
kHz
-
0.9
1.4
kHz
3
3.9
-
kHz
1.3
1.7
2.1
kHz
-
2.2
2.8
kHz
5
7.5
-
kHz
1.5
2.3
3.1
kHz
0.3
0.6
0.9
kHz
7
12
17
dB
3
522 - 13 - 02
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