SA58641 Philips Semiconductors, SA58641 Datasheet - Page 11

• Manufacturer Part Number: SA58641
• Description: High performance mixer FM IF system
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2004 Dec 16
High performance mixer FM IF system
with high-speed RSSI
*NOTE: This value can be reduced when a battery is the power source.
R10
R11
R1
R2
R3
R4
R5
R6
R7
R8
R9
8.2k select
6.42k
347.8
49.9
1k
49.9
6.42k
347.8
49.9
1k
49.9
L5
IF/LIM OUT
RF IN
MIXER
*L1
C10
C11
*C7
2
C1
C2
C3
C4
C5
C6
C8
C9
20
1
C11
C12
C2
C1
0.1 F
1–5pF select for input match
0.1 F
0.1 F
1–5pF select for input match
100pF
6.8 F 10V
1 F
39pF select
0.1 F
0.1 F
1
Figure 9. SA58641 240.05MHz (RF) / 10.7MHz (IF) Test Circuit
MIXER
FLT1
*L2
19
2
C3
C13
1
LO IN
L3
18
OSCILLATOR
3
2
R2
C14
Automatic Test Circuit Component List
IF
AMP
R4
R3
17
4
C15
IF/LIM IN
C4
C5
R5
C16
2
16
5
V
CC
V
11
1
CC
R6
FLT2
C15
C16
C17
C18
C19
C20
C21
C6
C7
C12
C13
C14
15
6
RSSI
OUT
1
160pF select
1000pF
RSSI
1000pF
0.1 F
0.1 F
1000pF
1000pF
0.1 F
1pF
0.1 F
–
14
7
2
+
R7
C17
CTRL
PWR
DWN
R9
R8
PWR
DWN
LIMITER
13
8
C18
FLT1
FLT2
FLT3
FLT4
QUAD
–
L1
L2
L3
L4
L5
FLT
FLT
12
9
3
4
+
C19
DATA
DATA
OUT
R10
SW5
C8
C20
150nH select for input match
22nH select for input match
47nH select for input match
5.6 H select for input match
1.27–2.25 H select for mixer
output match
10.7MHz (Murata SFE10.7MA5-A)
10.7MHz (Murata SFE10.7MA5-A)
“C” message weighted
Active de-emphasis
C9
10
11
C10
R1
R11
C21
SA58641
L4
Objective data
SR00501