Product Details

FTTH 47~1000MHz catv optical node/receiver with WDM

ERH1000/WD Series product is designed for FTTH/FTTB or HFC applications. The general type ERH1085/WD has a normal output level 85dBuV per-channel for TV. The enhanced type ERH1095/WD provides higher level, 95dBuV with -7dBm input power and 3.5% optical modulation index. Both types with WDM integrated for 1550nm video signal pass and 1310nm digital signal reflection they are very applicable for PON system.

Parameter			Min.	Typ.	Max.	Unit	Note
Wavelength		λ1	1260	1310	1360	nm	[1]
		λ2	1480	1490	1500
		λ3	1540	1550	1560
Insertion Loss	Port 1→Port 2@λ1				1.0	dB	[1]
	Port 1→Port 2@λ2				1.0
	Port 1→Port 3@λ3				1.0
Isolation	Port 1→Port 2@λ3		20			nm	[1]
Isolation	Port 1→Port 3@λ1&λ2		40			nm	[1]
Directivity	Port 2→Port 3@λ1&λ2		50				[1]
Directivity	Port 2→Port 3@λ3		20				[1]
PDL					0.2	dB
Optical return loss			45			dB
Input optical power			-8		+1	dBm	[2]

This input power range assure excellent parameters, otherwise in most cases -10dBm ~ +5dBm input power make no evidently degradation on TV signal.

RF Specification

Parameter		Min.	Typ.	Max.	Unit	Note
Frequency range		45		1000	MHz
RF output level	General	79	82	85	dBuV/ch	[1]
RF output level	Enhanced	89	92	95	dBuV/ch	[1]
TILT				1	dB
Flatness(Ripple)		±0.5			dB
CNR		46			dB	[2]
CSO				-55	dBc	[3]
CTB				-55	dBc	[3]
RF output impedance			75		Ω
RF output return loss		16			dB

Note [1]: optical modulation index (OM) 3.5%, input Power -7dBm~+1dBm.

Note [2]: CNR@-6dBm optical input, OMI=3.5%, 59 PAL-D channels.

Note [3]: OMI=3.5%, 01dBm input optical power, 59 PAL-D channels.

Recommended Operating Condition

Parameter		Min	Typical	Max	Unit	Note
Operation voltage	VCC	4.75	5.00	5.25	V	[1]
Operation voltage	VPD	10	12	15	V	[2]
Operation Current	85dBuV	230	240	250	mA	[3]
Operation Current	95dBuV	340	350	360	mA	[3]
Bias Current				10	mA	[4]
Operating temperature		-20		70	°C
Ambient humidity		5		95	%