ATR2732-40-EK2 Atmel, ATR2732-40-EK2 Datasheet - Page 3

• Manufacturer Part Number: ATR2732-40-EK2
• Description: KIT MEDIA/EVAL ATR2732+ATR2740
• Manufacturer: Atmel
• Type: DAB Digital Processingr

Specifications of ATR2732-40-EK2

• For Use With/related Products: ATR2740, ATR2732
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 2-1.
4918AS–DAB–03/06
Pin
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
42
43
44
45
46
47
48
49
50
51
52
53
54
SWITCHEN
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 (Continued)
IFAGCIN+
IFAGCIN
AGCSAW
TNKREFI
GDVCOV
MIXVIN+
MIXVIN
VAVCOV
LNAVO+
LNAVO
IPINDIO
MIXVO+
MIXVO
Symbol
VABIAS
CVREF
RREFE
TUNVV
IF1IN
IF2IN
IF1IN+
IF2IN+
AGCIF
WAGC
IF1O+
IF1O
IF2O+
IF2O
VFIL3
VFIL2
VFIL1
MOSI
NSS
SCK
VA1
VA2
–
–
–
–
–
–
–
–
Function
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)
(Differential) Input of 2nd IFVGA
(Differential) Input of 2nd IFVGA
Connection for time-constant capacitor of IFVGAs’ AGC
Input of IFAGC detector (differential with pin 48)
(Differential) Output of 2nd IFVGA
(Differential) Output of 2nd IFVGA
Input of IFAGC detector (differential with pin 45)
Supply voltage
Window AGC: all AGCs frozen and currents to capacitors switched off (necessary during Null Symbol or
when unused symbols are left out and the part is powered down using the SWITCHEN input)
Input for selection between the two enable registers, allowing a fast change between reduced, low-current,
and normal-reception mode, and offering current-saving capability
Inputs and outputs of serial bus (refer to serial bus protocol)
Inputs and outputs of serial bus (refer to serial bus protocol)
Inputs and outputs of serial bus (refer to serial bus protocol)
ATR2732 [Preliminary]
3