adc12d800rfrb National Semiconductor Corporation, adc12d800rfrb Datasheet - Page 13

• Manufacturer Part Number: adc12d800rfrb
• Description: 12-bit, 1.6/1.0 Gsps Rf Sampling Adc
• Manufacturer: National Semiconductor Corporation

P2, R2, T2, T3, U1
W2, W7, Y1, Y7,
U8, U9, W6, Y2,
G1, G3, G4, H2,
H4, N4, R1, T1,
D4, D5, E4, K1,
K4, L4, M2, N3,
M20, U13, U17,
A2, A6, B6, C6,
D8, D9, E1, F1,
N2, P1, P3, P4,
A11, A15, C18,
D11, D15, D17,
R20, T17, U11,
U15, U16, Y11,
A8, B9, C8, V8,
A1, A7, B2, B7,
L1, T4, U4, U5,
F2, G2, H3, J2,
D13, D16, E17,
F17, F20, M17,
A9, B8, C9, V9,
J3, K3, L3, M3,
A13, A17, A20,
V18, Y13, Y17,
J17, J20, R17,
Ball No.
H8:N13
W9, Y8
W8, Y9
R3, R4
L2, M4
J4, K2
Y15
Y20
Y6
VbiasQ
GND
GND
VbiasI
Name
GND
GND
V
V
V
V
TC
DR
A
E
TC
DR
E
TABLE 3. Power and Ground Balls
Equivalent Circuit
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
13
Description
Power Supply for the Analog circuitry. This
supply is tied to the ESD ring. Therefore, it must
be powered up before or with any other supply.
Power Supply for the Track-and-Hold and Clock
circuitry.
Power Supply for the Output Drivers.
Power Supply for the Digital Encoder.
Bias Voltage I-channel. This is an externally
decoupled bias voltage for the I-channel. Each
pin should individually be decoupled with a 100
nF capacitor via a low resistance, low inductance
path to GND.
Bias Voltage Q-channel. This is an externally
decoupled bias voltage for the Q-channel. Each
pin should individually be decoupled with a 100
nF capacitor via a low resistance, low inductance
path to GND.
Ground Return for the Analog circuitry.
Ground Return for the Track-and-Hold and Clock
circuitry.
Ground Return for the Output Drivers.
Ground Return for the Digital Encoder.
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