atr2732n1 ATMEL Corporation, atr2732n1 Datasheet - Page 3

• Manufacturer Part Number: atr2732n1
• Description: Integrated Dab One-chip Front End
• Manufacturer: ATMEL Corporation

Table 2-1.
9130AS–DAB–04/08
Pin
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
1
2
3
4
5
6
7
8
9
TNKREFO Reference-tank connection for to generate the tuning voltages for the external VHF filters (varactors)
PFDOUTV Output-of-phase comparator for VHF VCO (connected to PLL loop filter)
VTNKREF Output voltage for tuning the reference tank (-varactor)
Pin Description
AGCSAW
TNKREFI
GDVCOL
LNAVIN+
LNAVIN
GNDLNA
LNALIN
GDVCOV
LNALIN+
MIXVIN+
MIXVIN
VAVCOV
VAVCOL
LNALO+
LNALO
LNAVO+
LNAVO
IPINDIO
MIXVO+
MIXVO
Symbol
VAMIXL
LNAVL+
LNAVL–
AGCRF
VABIAS
CVREF
RREFE
TUNVV
TUNVL
VALNA
IF1IN
IF1IN+
IF1O+
IF1O
VFIL3
VFIL2
VFIL1
VA1
–
–
–
–
–
–
–
–
Function
Supply voltage (mixer for L-band)
Supply voltage (VCO for L-band)
Tuning voltage for integrated L-band VCO (connected to PLL loop filter)
Ground (L-band VCO)
Input for VHF LNVGA (differential with pin 8)
Connection for degeneration coil (inductance) to GNDLNA for VHF LNVGA
Connection for degeneration coil (inductance) to GNDLNA for VHF LNVGA
Input for VHF LNVGA (differential with pin 5)
Supply voltage for LNVGAs
(Differential) output for L-band LNVGA
(Differential) output for L-band LNVGA
Connection for time-constant capacitor of RF AGC (LNVGAs, external PIN diode)
Ground for LNVGAs
(Differential) input for L-band LNVGA
(Differential) input for L-band LNVGA
Current output to external PIN diode for additional attenuation of incoming signal (optional)
(Differential) output of VHF LNVGA and/or mixer for L-band
(Differential) output of VHF LNVGA and/or mixer for L-band
Supply voltage for (internal) voltage and current bias reference circuits
Connection for capacitor for filtering internal voltage/current reference circuits (capacitor to VABIAS)
(Differential) Output of IFVGA1
(Differential) Output of IFVGA1
Supply voltage
Connection for current reference resistor (resistor to ground)
Connection for AGC time-constant capacitor of the VHF mixer
(Differential) Input of 1st IFVGA
(Differential) Input of 1st IFVGA
(Differential) Input of VHF mixer
(Differential) Input of VHF mixer
(Differential) Output of VHF mixer
(Differential) Output of VHF mixer
Supply voltage (VHF VCO)
Tuning voltage for integrated VHF VCO (connected to PLL loop filter)
Ground (VHF VCO)
Voltage outputs for frequency tuning of VHF filters: antenna filter, preselection filter
Voltage outputs for frequency tuning of VHF filters: antenna filter, preselection filter
Voltage outputs for frequency tuning of VHF filters: antenna filter, preselection filter
Reference-tank connection for to generate the tuning voltages for the external VHF filters (varactors)
ATR2732N1
3