Marantz SR6004 Service Manual page 143

IC44 : TC7MBL6125
Inputs (6125S) Inputs (6126S)
OE
L
H
IC45 : NB3N502DR2G
X1/CLK
Crystal
Oscillator
X2
Multiplier
Select
S1 S0
Table 1. CLOCK MULTIPLIER SELECT TABLE
S1*
L
L
M
M
H
H
Table 2. OUTPUT FREQUENCY EXAMPLES
Output Frequency (MHz)
Input Frequency (MHz)
S1, S0
Table 3. PIN DESCRIPTION
Pin # Name
1 X1/CLK
2 V
DD
3 GND
4 REF
5 CLKOUT
6 S0
7 S1
8 X2
Function
OE
H A port B port
L Disconnect
V
DD
P
Phase
Detector
Figure 1. NB3N502 Logic Diagram
GND
S0** Multiplier
L 2X
H 5X
L 3X
H 3.33X
L 4X
H 2.5X
20 25 33.3
10 10 10
0 ,0 1, 1 M, 1
I/O
Input Crystal or External Reference Clock Input
Power Supply Positive Supply Voltage (3 V to 5.5 V)
Power Supply 0 V Ground.
CMOS/TTL Output Buffered Crystal Oscillator Clock Output
CMOS/TTL Output Clock Output
CMOS/TTL Input
Crystal Input
An
n OE
Reference
Clock
Charge
VCO
Pump
Feedback
M
L = GND
H = V
DD
M = OPEN (unconnected)
* Pin S1 defaults to M when left open
** Pin S0 defaults to H when left open
48 50 54 64
16 20 13.5 16
M, 0 1, 1 1, 0 1, 0
Description
or GND.
DD
, GND or Float to M.
DD
175
Bn
(n=1,2,3,4)
TTL/
CMOS
Output
TTL/
CMOS
Output
66.66 75 100 108
20 15 20 27
M, 1 0, 1 0, 1 1, 0
REF
CLKOUT
120 135
24 27
0, 1 0, 1