JTAG PROBES FOR SIGNUM EMULATORS
TECHNICAL SPECIFICATIONS
11
Isolation Probe for TI-14 JTAG with an Optional
External Power Input
ADA-ISO-TI14-E
The isolation probe for TI-14 JTAG with an auxiliary power input ADA-ISO-TI14-E should be used in
applications where the target board does not have enough current (about 150mA) to supply the isolation probe.
When used with external power adapter, this probe reduces the current taken from the target board to
approximately 1 mA.
The ADA-ISO-TI14-E probe requires a 5.0V VDC external power source to be connected to the J1 socket.
The polarity for the J1 socket is center pin positive (+), outer collar negative (−). Reversed polarity may damage
some electronic devices. If the external power supply is not connected, the isolation probe will automatically
take power (about 150mA) from the target board. The auxiliary power adapter is not included with the isolation
probe.
See also the specification of the ADA-ISO.
1
3
5
7
9
11
13
2
4
6
8
10
12
14
TMS
TDI
PD
TDO
TCK_RET
TCK
EMU0
nTRST
GND
KEY
GND
GND
GND
EMU1
FIGURE 25
The ADA-ISO-TI14-E isolation
probe with an auxiliary power input.
FIGURE 26 The TI14 pinout of the ADA-ISO-TI14-
E probe. Top view.
B
A
Key
Pin 2
Pin 1
Cable to Emulator
J1 Socket
Galvanic
Isolator
FIGURE 27 The dimensions of the 20-pin ADA-
ISO-TI14-E probe. Top view. A = 32.4 mm (1.28
in), B = 28.5 mm (1.12 in).
FIGURE 28 The ADA-ISO-TI14-E probe. Side view.
C = 20.5 mm (.81 in.), D = 14.2 mm (0.56 in.), E = 8.5
mm (0.33 in.).
