Denon S-302 Service Manual page 68

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TAS5121DKD (IC207: 1U-3811)
TERMINAL
NAME
BST_A
BST_B
DGND
DREG
DREG_RTN
DVDD
GND
TE
L 13942296513
GVDD
GVDD_A
GVDD_B
M1
M2
M3
OTW
OUT_A
OUT_B
PVDD_A
PVDD_B
PWM_AP
PWM_BP
RESET
SD
(1) I = input, O = Output, P = Power
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GND
PWM_BP
GND
RESET
DREG_RTN
GVDD
M3
DREG
DGND
M1
M2
DVDD
SD
DGND
OTW
GND
PWM_AP
GND
FUNCTION (1) FUNCTION (1)
DKD
22 P High side bootstrap supply (BST), external resistor and capacitor to OUT_A required
33 P High side bootstrap supply (BST), external resistor and capacitor to OUT_B required
9, 14 P I/O reference ground
8 P Digital supply voltage regulator decoupling pin, 1 μFcapacitor connected to DREG_RTN
5 P Decoupling return pin
12 P I/O reference supply input: 100 Ω to DREG, decoupled to GND, 0.1 μF capacitor connected to
GND
1, 3, 16, P Power ground, connected to system GND
18, 21,
27, 28,
34
6 P Local GVDD decoupling \pin
19, 20 P Gate drive input voltage
35, 36 P Gate drive input voltage
10 I Protection mode selection pin, connect to GND
11 I Protection mode selection pin, connect to DREG
7 I Output mode selection pin; connect to GND
15 O Overtemperature warning output, open drain with internal pullup, active-low when temperature
exceeds 115°C
25, 26 O Output, half-bridge A
29, 30 O Output, half-bridge B
23, 24 P Power supply input for half-bridge A
31, 32 P Power supply input for half-bridge B
17 I PWM input signal, half-bridge A
2 I PWM input signal, half-bridge B
4 I Reset signal, active low
13 O Shutdown signal for half-bridges A and B (open drain with internal pullup)
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GVDD_B
1 36
GVDD_B
2 35
GND
3 34
BST_B
4 33
PVDD_B
5 32
PVDD_B
6 31
OUT_B
7 30
OUT_B
8 29
GND
9 28
GND
10 27
OUT_A
11 26
OUT_A
12 25
PVDD_A
13 24
PVDD_A
14 23
BST_A
15 22
GND
16 21
GVDD_A
17 20
GVDD_A
18 19
Terminal Functions
DESCRIPTION DESCRIPTION
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