Atmel ATR4262M1 ユーザーズマニュアル
2
4994BS–AUDR–05/08
ATR4262M1 [Preliminary]
2.
Pin Configuration
Figure 2-1.
Pinning QFN48
AMIN1
AMIN2
AMCVC
AMPIND
SW1
FMPIND
FMIN1
FMIN12
FMIN2
DAC1
DAC2
SW2
SW3
IFOUT1
IFOUT2
VSPLL
REF1
REF2
VRPLL
AMLF
FMLF
VTUNE
GNDPLL
VCOBUF
AMOUT1
AMOUT2
AMAGCTC1
FMOUT1
FMOUT2
VST
IFIN1
IFREF
IFIN2
VRT
IFIN3
AMAGCT2
FMAGCTC
KAGC
IFGCL
IFGCM
ENABLE
SDA
SCL
AFCC
VRVCO
VCOB
VCOE
GNDVCO
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
ATR4262M1
Table 2-1.
Pin Description
Pin
Symbol
Function
1
AMIN1
AM mixer input
2
AMIN2
AM mixer input
3
AMCVC
AM cascode voltage output
4
AMPIND
AM pin diode output
5
SW1
SW1 switching output
6
FMPIND
FM pin diode output
7
FMIN1
FM mixer input 1
8
FMIN12
FM mixer input 12
9
FMIN2
FM mixer input 2
10
DAC1
DAC tuning voltage output 1
11
DAC2
DAC tuning voltage output 2
12
SW2
SW2 switching output/external tuning voltage input
13
FMAGCTC
RF AGC FM time constant
14
KAGC
Keyed AGC input/SW7/lock detect/AFSAMPLE
15
IFGCL
IF gain control LSB/SW4
16
IFGCM
IF gain control MSB/SW5
17
ENABLE
Control bus ENABLE/address select
18
SDA
Two-wire control bus SDA
19
SCL
Two-wire control bus SCL