
2
HPMD-7904 Electrical Specifications, Z
O
= 50
, T
C[1]
as indicated
+25
°
C
[1,3]
Min
Typ
+85
°
C
[1,2,3]
Min
Typ
–
30
°
C
[1,2,3]
Min
Typ
Symbol
Parameters
Units
Max
Max
Max
f
RX
Receive Bandwidth
MHz
1930.6
—
1989.4
1930.6
—
1989.4
1930.6
—
1989.4
S23 Rx
Attenuation in Transmit Band
(1850.6–1909.4 MHz)
dB
50
54
—
50
52
—
50
52
—
S23 Rx
Typical Insertion Loss in Receive Band
(1935–1985MHz)
dB
—
2.2
3.5
—
2.2
3.8
—
2.2
3.8
S23 Rx
Insertion Loss at Edges of Receive
Band (1930.6-1935 MHz and
1985-1989.4 MHZ)
dB
—
3.0
3.5
—
3.0
3.8
—
3.0
4.5
S23
Ripple in Receive Band
dB
—
1.5
—
—
1.5
—
—
2.0
—
S22 Rx
Return Loss in Receive Band
dB
8.0
10
—
8.0
10
—
8.0
10
—
f
TX
Transmit Bandwidth
MHz
1850.6
—
1909.4
1850.6
—
1909.4
1850.6
—
1909.4
S31 Tx
Attenuation in Receive Band
(1930.6–1935 MHz)
dB
40
42
—
40
42
—
37
42
—
S31 Tx
Attenuation in Receive Band
(1935–1989.4 MHz)
dB
40
42
—
40
42
—
40
42
—
S31 Tx
Insertion Loss in Transmit Band
(1855–1905 MHz)
dB
—
1.8
3.0
—
1.8
3.5
—
1.8
3.5
S31 Tx
Insertion Loss at Edges of
Transmit Band (1850.6-1855 MHz
and 1905-1909.4 MHz)
dB
—
2.5
3.0
—
3.0
3.8
—
3.0
3.6
S31
Ripple in Transmit Band
dB
—
2.0
—
—
3.0
—
—
2.0
—
S11 Tx
Return Loss in Transmit Band
dB
8.0
10
—
8.0
10
—
8.0
10
—
S33 Ant
Return Loss, Tx and Rx bands
dB
8.0
—
—
—
—
—
—
—
—
S21
Tx-Rx Isolation, 1850.6–1909.4 MHz
(Transmit Band)
dB
50
54
—
50
54
—
50
54
—
S21
Tx-Rx Isolation, 1930.6–1935 MHz
(Receive Band)
dB
40
42
—
40
42
—
38
42
—
S21
Tx-Rx Isolation, 1935–1989.4 MHz
(Receive Band)
dB
40
42
—
40
42
—
40
42
—
Absolute Maximum Ratings
[4]
Parameter
Unit
Value
Operating temperature
[1]
°
C
-30 to +85
Storage temperature
[1]
°
C
-30 to +100
Notes:
1. T
is defined as case temperature, the temperature of the underside of the duplexer where it
makes contact with the circuit board.
2. Specifications are given at operating temperature limits and room temperature. To estimate
performance at some intermediate temperature, use linear interpolation.
3. Specifications are guaranteed over the given temperature range, with the input power to the Tx
port equal to +30 dBm (or lower) over all Tx frequencies. The application of input power levels in
excess of +30 dBm will not destroy the duplexer, but its performance may exceed the specification
limits given above.
4. Operation in excess of any one of these conditions may result in permanent damage to the device.