39
TS8308500
2193A–BDC–04/03
TS8308500
Pin Description
(CBGA68 package)
Note:
1. The common mode level of the output buffers is 1.2V below the positive digital supply
For ECL compatibility the positive digital supply must be set at 0V (ground )
For LVDS compatibility (output common mode at +1.2V) the positive digital supply must be set at 2.4V
If the subsequent LVDS circuitry can withstand a lower level for the input common mode, it is recommended to lower the
positive digital supply level in the same proportion in order to spare power dissipation
Table 8. TS8308500 Pin Description
Symbol
Pin number
Function
GND
A2, A5, B1, B5, B10, C2, D2, E1, E2, E11,
F1, F2, G11, K2, K3, K4, K5, K10, L2, L5
Ground pins, to be connected to external ground plane
V
CC
A4, A6, B2, B4, B6, H1, H2, L6, L7
+5V positive supply
V
EE
A3, B3, G1, G2, J1, J2
5V analog negative supply
DVEE
F10, F11
-5V digital negative supply
V
IN
L3
In-phase (+) analog input signal of the Sample and Hold
differential preamplifier
V
INB
L4
Inverted phase (-) of ECL clock input signal (CLK)
CLK
C1
In-phase (+) ECL clock input signal. The analog input is
sampled and held on the rising edge of the CLK signal
CLKB
D1
Inverted phase (-) of ECL clock input signal (CLK)
B0, B1, B2, B3, B4, B5,
B6, B7
A8, A9, A10, D10, H11, J11, K9, K8
In-phase (+) digital outputs. B0 is the LSB, B7 is the MSB
B0B, B1B, B2B, B3B,
B4B, B5B, B6B, B7B
B7, B8, B9, C11, G10, H10, L10, L9
Inverted phase (-) Digital outputs. B0B is the inverted LSB
B7B is the inverted MSB
OR
K7
In-phase (+) Out of Range bit. Out of Range is high on the
leading edge of code 0 and code 256
ORB
L8
Inverted phase (+) of Out of Range bit (OR)
DR
E10
In-phase (+) output of Data Ready signal
DRB
D11
Inverted phase (-) output of Data Ready signal (DR)
GORB
A7
Gray or Binary select output format control pin
– Binary output format if GORB is floating or VCC
– Gray output format if GORB is connected at ground (0V)
GAIN
K6
ADC gain adjust pin. The gain pin is grounded by default,
the ADC gain transfer fuction is nominally close to one
DIOD/DRRB
K1
Die function temperature measurement pin and
asynchronous data ready reset active low, single ended
ECL input
V
PLUSD
B11, C10, J10, K11
+ 2.4V for LVDS output levels otherwise to GND
(1)
NC
A1, A11, L1, L11
Not connected