Samsung SCH-A302 Service Manual page 50

SCH-A302
Circuit description & Circuit Diagrams
3. BASIC BLOCK DIAGRAM
D U PL E X ER
P OWE R A M P
M O DU L E
I F R 30 0 0
R F T 3 10 0
19.68 MHz
RF R X
PA R T
V CT C XO
Receive Data
T r ansmit I and Q Data
SAMSUNG Proprietary-Contents may change without notice
M SM 3 1 0 0 C
PL L
H K A D Cs
V o lt age Regul at o r
A RM7 T DMI
RF
I nt e r f ace
C D M A
P ro ce ss or
V o c o de r
T x
D A C s
C OD EC
D F M
P ro ce ss or
Mo de Sel ect
I nt er f ace
SB I
AN SI/ I EEE 11 49. 1A - 199 3
JT A G Int er f c e
10-6
PC
USB C o nn ec t iv it y
T es t / D eb ug
U A RT 1
Sy s t em
U A RT 2
T W L 2 2 1 4
Char gi ng
sy stem
32. 768 K hz
BUS
SRA M ,FL A S H,
E EP RO M ,
L CD d isp la y
Ge n er n al
K E Y PA D
P ur p o s e
I nt e r f ac e
RINGER
EV RC
1 3 K
Digital Test Bus