HFC-SUSB Cologne Chip AG, HFC-SUSB Datasheet - Page 65

• Manufacturer Part Number: HFC-SUSB
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

863 C EC2
7.1.3 External transmitter circuitry
Figure 9: External transmitter circuitry
Part List
Part
C7
D3
D5
D4
Q2
Q3
Q4
Q5
Q6
RE1
RE2
RF1
*)
:e\i " !
/ TX_E N
TX1_H I
value depends on the used S/T transformer module
R 9
R E1
Value
470p
BAV99
BAV99
2V7
BC860CL
BC850CL
BC850CL
BC850CL
BC850CL
560
560
12
*)
G N D
R G 1
V D D
/ TX2_LO
R 6
C 7
Q 5
Q 2
Q 3
R 7
R F 1
G N D
R 11
R 12
Q 4
R F 2
G N D
Q 6
Part
RF2
RG1
RG2
R6
R7
R9
R11
R12
ISDN_ST1 ISDN Connector
TR1
D 5
D 3
/ TX1_LO
D 4
G N D
Value
12
4k7
4k7
3k3
50
5k6
1k8
2k2
S/T transformer module
(see Table 5 on page 67)
R G 2
*)
R E2
TR 1B
TR A N S
TX2_H I
Cologne
Chip
I S D N _S T1
&% _V ("
R EC 1
R EC 2
TR A N S 1
TR A N S 2