Pardew says the 22-year-old will not burst on the scene at St James' Park like Papiss Cisse.
Amalfitano joined the Magpies from Stade de Reims this summer but he did not feature regularly for the Ligue 2 champions, and may be short of fitness
Alan Pardew: "Romain's a player who has been off the radar for a while, so it's going to take him some time to get back to his very, very best.
"However, he is coming into a great environment and I'm sure he'll settle very quickly.
"I hope the fans don't expect him to burst on the scene like Papiss (Cisse) did last season.
"We will take our time with him, and the players will make him feel at home.
"That's the beauty of the French market.
"He plays across the midfield, a bit like Sylvain Marveaux.
"Word of mouth is very good and there's a lot of contact from players wanting to come to this club.
"That arms me for the Europa League and it may well help me to bring players in and out."
EURO 2012
GROUP STAGES
Friday June 8
Warsaw, Group A: Poland v Greece (1700)
Wroclaw, Group A: Russia v Czech Republic (1945)
Saturday June 9
Kharkiv, Group B: Holland v Denmark (1700)
Lviv, Group B: Germany v Portugal (1945)
Sunday June 10
Gdansk, Group C: Spain v Italy (1700)
Poznan, Group C: Republic of Ireland v Croatia (1945)
Monday June 11
Donetsk, Group D: France v England (1700)
Kiev, Group D: Ukraine v Sweden (1945)
Tuesday June 12
Wroclaw, Group A: Greece v Czech Republic (1700)
Warsaw, Group A: Poland v Russia (1945)
Wednesday June 13
Lviv, Group B: Denmark v Portugal (1700)
Kharkiv, Group B: Holland v Germany (1945)
Thursday June 14
Poznan, Group C: Italy v Croatia (1700)
Gdansk, Group C: Spain v Republic of Ireland (1945)
Friday June 15
Donetsk, Group D: Ukraine v France (1700)
Kiev, Group D: Sweden v England (1945)
Saturday June 16
Wroclaw, Group A: Czech Republic v Poland (1945)
Warsaw, Group A: Greece v Russia (1945)
Sunday June 17
Kharkiv, Group B: Portugal v Holland (1945)
Lviv, Group B: Denmark v Germany (1945)
Monday June 18
Gdansk, Group C: Croatia v Spain (1945)
Poznan, Group C: Italy v Republic of Ireland (1945)
Tuesday June 19
Donetsk, Group D: England v Ukraine (1945)
Kiev, Group D: Sweden v France (1945)
QUARTER-FINALS
Thursday June 21
Warsaw, QF1: Winner A v Runner-up B (1945)
Friday June 22
Gdansk, QF2: Winner B v Runner-up A (1945)
Saturday June 23
Donetsk, QF3: Winner C v Runner-up D (1945)
Sunday June 24
Kiev, QF4: Winner D v Runner-up C (1945)
SEMI-FINALS
Wednesday June 27
Donetsk, SF1: Winner QF1 v Winner QF3 (1945)
Thursday June 28
Warsaw, SF2: Winner QF2 v Winner QF4 (1945)
FINAL
Sunday July 1
Kiev: Winner SF1 v Winner SF2 (1945)