tb31262f TOSHIBA Semiconductor CORPORATION, tb31262f Datasheet - Page 2

• Manufacturer Part Number: tb31262f
• Description: Rf 1chip Ic For 900 Mhz Cordless Telephone
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Block Diagram
ANT
P i-Matching Network
DUP
38kohm
Matching Network
C37
L9
15n
1
L P F
C32
MAX 50 k
100n
C39
VR2
C35
R13
18n
C38
10
DYNAMIC
RECEIVR
3kohm
(EX)
P i-Matching Network
C36
C5
3p
1
R17
EXP -OUT
3p C31
C45
L3
10n
C 3
1n
100n
Det Coil
DC-CUT
330k
R16
8.2k
4
R14
39k
10
C33
100k
R17
C4
RECEIVER 2
C1
47p
PASS
R
C44
47p
R15
220k
BI
C30
DATA -IN
QUAD
P R E-I N
RECEIVER 1
G N D 1
LNA-C
LNA-E
LNA-B
P A -VCC
8.2n L8
VCC2
C3
5p
PASS
C40
1
C41
220pF
BI
C-RECT
40
41
42
43
44
45
46
47
48
49
50
51
52
C2
1n
SOFT VOLUME
40pF
2.2
LNA
G v
C29
A F-OUT
C42
3p
QUAD
39
1
4.7k
100n
P A-OUT1 P A-OUT2
11
3.3n
R12
C28
R X-LOOP
Bias
( A T T )
12
3.3n
470k
27n
38
2
T X-MUTE
LPF:Fc
Phase
Compalator
Divider
C27
I F-AMP2
F E E D B A C K
R X-VCC
C24
47p
(2’nd)
37
3
Buffer
22pF
15kHz
Double Balanced MIX
C23
10n
P R E-AMP
EXP
RXVCO
P A -G N D
450MHzOSC
L2
36
900MHz
4
2.2n
17
RXVCO
Double (
35
L1
5
Balanced Connectable
Differential RX VCO
S P L
OUT
R5
39k
2.2n
16
2
S P L -AMP
C10
C9
R X -G N D
R4
0
Buffer
34
6
100n
2)
C22
T X-
MUTE
S P L
I N
Differential TX OSC
L P F
R3
470k
L P F
C8
1
GAIN
SETTING
COMP
V R E F
COMP
OUT
33
7
DC-CUT
C21
10
900MHz
I F -AMP1
OUT
MIC
OUT
GAIN
SETTING
32
FEED
B A C K
8
MIC -AMP
I F-AMP2
100p
(1’st)
Doubler (
C7
E-RECT
I F-AMP2
1’ st, 2’nd Amount
Gv
R2
470k
MIC
I N
MIC
31
I N
9
C20
2.2
Differential TX OSC
Balanced Connectable
to MIX
T X-VCC
R1
15k
C6
1
72dB
DC-CUT
MOD
10.7MHz
C26
47p
L P F
I F-AMP2
IN
450MHz
CF
2)
30
10
G
C25
10n
I F -AMP
R E F
TXVCO
I F-AMP1
Gv
29
11
L1
14
2.2n
C43
10n
24dB
C18
10
DATA -COMP
VCC1
Divider
Phase
Compalator
TXVCO
100n
C19
28
12
L2
DATA
LATCH
CONTROL
15
2.2n
C48
47p
FREQ
T X G N D
10.7MHz
27
13
G
CF
I F-AMP1
I N
26
25
24
23
22
21
20
19
18
17
16
15
14
C15
2.2
G N D 2
C-N P
T X LOOP
MIX-OUT
1n
P A-GAIN-CONT
T
100K
VR1
R8
C12 R6
VCC3
R7
100k
2.2
C14
DC-CUT
1
R9
C13
0
1
C11
50K
100n
C17
1k
C46 C47
1n
TB31262F
R11
R10
R E F-I N
47p
100p
C16
2001-12-26
R S S I
SIG -OUT
B i-Pass
DATA -OUT
CLK
DATA
STB