T4260
2. Pin Configuration
Figure 2-1. Pinning SSO44
DAC1
DAC2
1
2
3
4
5
6
7
8
9
44 MXFMOB
43 MXFMOA
42 RFAGCA1
41 VST
FMAGCO
MXFMIA
MXFMIB
GNDRF
40 MXAMOA
39 MXAMOB
38 GNDT
MXAMIB
MXAMIA
AMAGCO
37 VRT
36 IFINFM
35 IFINAM
34 IFREF
IFAGCA2 10
SW2/AGC 11
RFAGCA2 12
SW1 13
33 RFAGCFM
32 IFAGCA1
31 IFAGCFM
30 IFOUTA
29 IFOUTB
28 GNDPLL
27 REFFREQ
26 VRPLL
25 DATA
VRVCO 14
VSPLL 15
FMLF 16
AMLF 17
VTUNE 18
OSCGND 19
OSCE 20
OSCB 21
24 CLK
OSCBUF 22
23 EN
Table 2-1.
Pin
Pin Description
Symbol
Function
1
2
DAC1
DAC2
DAC1 output
DAC2 output
3
FMAGCO
MXFMIA
MXFMIB
GNDRF
MXAMIB
MXAMIA
AMAGCO
IFAGCA2
SW2/AGC
RFAGCA2
SW1
FM AGC current
FM mixer input A
FM mixer input B
RF ground
4
5
6
7
AM mixer input B
AM mixer input A
AM AGC current
AM IF-AGC filter 2
8
9
10
11
12
13
14
15
16
17
18
19
20
Switch 2/AM AGC voltage
RF AM-AGC filter 2
Switching output 1
VCO reference voltage
PLL supply voltage
FM loop filter
VRVCO
VSPLL
FMLF
AMLF
AM loop filter
VTUNE
OSCGND
OSCE
Tuning voltage
Oscillator ground
Oscillator emitter
3
4528M–AUDR–03/08