Denon DN-V1700 Service Manual page 25

Pin
Pin Name
No.
External Inductor Connection for OUT2. Connect to the switched side of the inductor. LX2 serves as the lower supply
16 LX2
voltage rail for the DH2 high-side gate driver and is the positive input to the OUT2 current-limit comparator.
17 DH2 High-Side Gate Driver Output for OUT2. Swings from LX2 to BST2.
Boost Flying Capacitor Connection for OUT2. Connect to an external capacitor and diode according to the Standard
18 BST2
Application Circuit.
19 DL2 Low-Side Gate-Driver Output for OUT2. DL2 swings from PGND to V
Supply Input for the DL Gate Drivers. Connect to the system supply voltage, +4.5V to +5.5V. Bypass to PGND with a
20 V
DD
minimum 4.7µF ceramic capacitor.
Analog-Supply Input. Connect to the system supply voltage, +4.5V to +5.5V, with a 20Ω series resistor. Bypass to
21 V
CC
AGND with a 1µF ceramic capacitor.
Power Ground. Connect directly to the low-side MOSFETs' sources. Serves as the negative input of the current-sense
22 PGND
amplifiers.
24 DL1 Low-Side Gate Driver Output for OUT1. DL1 swings PGND to V
Boost Flying Capacitor Connection for OUT1. Connect to an external capacitor and diode according to the Standard
25 BST1
Application Circuit.
26 DH1 High-Side Gate Driver Output for OUT1. Swings from LX1 to BST1.
External Inductor Connection for OUT1. Connect to the switched side of the inductor. LX1 serves as the lower supply
27 LX1
voltage rail for the DH1 high-side gate driver.
CD74HC4046AM (IC106)
CD74HC4046AM Pin Description
Pin No. Symbol
1 PCP
OUT
2 PC1
OUT
3 COMP
IN
4 VCO
OUT
5 INH
6 C1
A
7 C1
B
8 GND
9 VCO
IN
10 DEM
OUT
11 R
1
12 R
2
13 PC2
OUT
14 SIG
IN
15 PC3
OUT
16 V
CC
TOP VIEW
PCP 1
OUT
PC1 2
OUT
COMP 3
IN
VCO 4
OUT
INH 5
C1 6
A
C1 7
B
GND 8
Phase Comparator Pulse Output
Phase Comparator 1 Output
Comparator Input
VCO Output
Inhibit Input
Capacitor C1 Connection A
Capacitor C1 Connection B
Ground (0V)
VCO Input
Demodulator Output
Resistor R1 Connection
Resistor R2 Connection
Phase Comparator 2 Output
Signal Input
Phase Comparator 3 Output
Positive Supply Voltage
Function
.
DD
.
DD
16 V
CC
15 PC3
OUT
14 SIG
IN
13 PC2
OUT
12 R
2
11 R
1
10 DEM
OUT
9 VCO
IN
Name and Function
DN-V1700
25