E6420BBG Semtech, E6420BBG Datasheet - Page 16

• Manufacturer Part Number: E6420BBG
• Manufacturer: Semtech

Specifications of E6420BBG

• Lead Free Status / RoHS Status: Not Compliant

Loading Requirements
Voltage Outputs
All voltage outputs (denoted VOUT_CH[0:3]_[0:10]) require
a load capacitance between 10 nF and 100 nF for stability.
Current Outputs
All current outputs require capacitive loading; the amount
of loading needed to ensure stability is dependent on the
impedance that the current outputs of the 6420 drive.
For impedances of 1.3 K
seen at the E720 current inputs (ISK, ISRC, IBIAS, RADJ,
and FADJ), it is recommended that 1 nF be used.
HIGH-PERFORMANCE PRODUCTS – ATE
Application Information (continued)
2000 Semtech Corp.
SGND
AGND
0V
I REF
Establishes I REF
The Selection of
R_MASTER
I REF
+15.5V
AVCC
Figure 7. Required External Resistors and Components
to 1.6 K , such as what is
Offset Control
For Group A
Gain and
DACs
I REF
AVDD
+5V
I REF
Offset Control
For Group B
Gain and
VEE
–5V
DACs
I REF
Edge6420
I REF
AGND
0V
16
Offset Control
For Group C
Gain and
DACs
I REF
DVDD
Caution on Exceeding Compliance Limits on Current
Output DACs
Current output DACs (i.e., Group E and F DACs) can exhibit
a “lock-up” condition in situations when the actual voltage
seen at the outputs of these DACs exceeds the compliance
limits in the specification. Care should be taken in the
design of circuits being driven by Group E and F outputs
to ensure compliance limits stated in the specifications
are not exceeded.
+5V
I REF
Offset Control
For Group D
Gain and
DGND
DACs
0V
I REF
I REF_E
VREF
I REF_F
+ –
AGND
2.5V
VOUT_CH0_8
VOUT_CH0_9
VOUT_CH0_10
VOUT_CH0_0
VOUT_CH0_1
VOUT_CH0_2
IOUT_CH0_1
IOUT_CH0_4
Outputs
Outputs
Voltage
Current
DAC
DAC
. .
.
. .
.
. .
.
. .
.
Note: All unused
voltage outputs must have
an external capacitor
attached (between
10 nF and 100 nF).
Edge6420
10 nF to 100 nF
10 nF to 100 nF
1 nF (see below)
1 nF (see below)
Requirement:
Requirement:
Requirement:
Requirement:
www .semtech.com
Loading
Loading
Loading
Loading