U3770M Datasheet, PDF (4/5 Pages) TEMIC Semiconductors – CT2 I/Q Modulator and Clock Circuitry

U3770M
Test Circuit
R _{Ref in}
12.8 MHz
2
3
VDD ₄
DGND ₁₃
AGND ₁₂
PROG ₁₀
TST
Amp
4.7 nF
47 nF
LF ^{22 W}
11
DIV / 25
Phase
512 kHz ^comparator
VCO
95 9967
14
CLK out
DIV / 36
512 kHz
18.432 MHz
DIV / 2
or
DIV / 4
6.4 MHz
Dual DFF
3.2 MHz
9
MOD out
6
Q in
5
QB in
8
I in
7
IB in
1 nF
1 nF
1 nF
1 nF
1 kW
1 kW
1 kW
1 kW
Figure 3. Test circuit
4 (5)
MATRA MHS
Rev. A2, 03-Dec-97